ie8 fix
madison

What you need to know about the Windows 7 Release Candidate

By | April 26, 2009, 9:09pm PDT

Summary: Microsoft has finished its work on the Windows 7 Release Candidate and has announced a distribution schedule. For those who are thinking of evaluating this release, I’ve put together this FAQ.

Updated 5-May

Microsoft has finished its work on the Windows 7 Release Candidate and has announced a distribution schedule. For those who are thinking of evaluating this release, I’ve put together this FAQ. If you have any additional questions, ask them in the Talkback section; I’ll update this post as needed.

What is the Windows 7 Release Candidate?

The Release Candidate (RC for short) is the most recent milestone build in the Windows 7 development process. The official build string is 7100.0.090421-1700. It is available in x86 and x64 formats.

Update 5-May: The Release Candidate code is available for update here.

Will there be additional release candidates after this one?

That’s not in the plan of record, and it’s unlikely to happen. Interim builds will be prepared between now and the final release for testing internally at Microsoft and externally by OEM partners. But this is the final version that will be made publicly available before Windows 7 is released for manufacturing and sent to retail channels and OEM partners.

Is the Release Candidate feature-complete?

Yes. Rumors that Microsoft is holding back a secret feature or radical change in the Windows 7 user interface are unfounded. Although it’s possible that Microsoft will add some new desktop backgrounds or screen savers, what you see in the Release Candidate is what you’ll get when the product is released. Microsoft’s work from now until then is in fixing the last round of bugs, most of which will be related to OEM configurations and hardware support.

Back in early March, I spotlighted some of the visual changes in Windows 7 that you’ll see in the Release Candidate (see “A sneak peek at the Windows 7 Release Candidate”). In addition, Microsoft has announced that it will release a custom version of Virtual PC with a licensed copy of Windows XP SP3 and make the combination available as a download for licensed users of the business editions of Windows 7 (Professional and up). This add-on, called Windows XP Mode) will not be included with the release candidate, nor will it be part of the final RTM product. 

What’s changed from the beta release?

A lot, actually. See my review “Windows 7: What to expect” and the accompanying screenshot gallery for more details. 

Will the RC be available to the general public?

Yes. Just as with the beta release, the public will be able to download and install this release for evaluation purposes.

Do I have to pay anything to use the Windows 7 RC?

No.

When will the RC be officially available for download?

Participants in the technical beta program got access to the RC bits on April 30, as did TechNet and MSDN subscribers. You can sign in using your credentials and download the RC code from those sites. The public download site went live on May 4.

What format will the download be available in?

Downloads will be disk images in ISO format, which can be burned to DVD. You can also mount the file to a virtual drive using a program like Virtual Clone Drive. Your CD/DVD burning program may offer this capability as well.

Can I install the Windows 7 release candidate over an earlier beta release?

That depends. If you use the setup files as distributed, you will be blocked from upgrading over any build prior to 7077. That includes the beta release (build 7000) and most leaked interim builds from April 4 or earlier. There is a workaround, however, which I’ll document in a follow-up post.

Can I upgrade my existing copy of Windows XP?

No. The XP-to-7 upgrade path is not officially supported. Microsoft has advanced deployment tools to assist with XP migrations in enterprise settings, but for the RC you’re better off using the Windows Easy Transfer utility to copy your data and settings to external storage, then restore it (and reinstall your programs) after performing a clean install of Windows 7.

Can I upgrade my existing copy of Windows Vista?

Continued on page 2 –>

Topics

Ed Bott is an award-winning technology writer with more than two decades' experience writing for mainstream media outlets and online publications.

Disclosure

Ed Bott

Ed Bott is a freelance technical journalist and book author. All work that Ed does is on a contractual basis.

Since 1994, Ed has written more than 25 books about Microsoft Windows and Office. Along with various co-authors, Ed is completely responsible for the content of the books he writes. As a key part of his contractual relationship with publishers, he gives them permission to print and distribute the content he writes and to pay him a royalty based on the actual sales of those books. Ed's books written prior to fall 2011 have been distributed by Que Publishing (a division of Pearson Education) and by Microsoft Press. As of November 2011, Ed is a partner in the independent publishing company Fair Trade Digital Exchange, which exclusively publishes his books.

On occasion, Ed accepts consulting assignments. In recent years, he has worked as an expert witness in cases where his experience and knowledge of Microsoft and Microsoft Windows have been useful. In each such case, his compensation is on an hourly basis, and he is hired as a witness, not an advocate.

Ed does not own stock or have any other financial interest in Microsoft or any other software company. He owns 500 shares of stock in EMC Corporation, which was purchased before the company's acquisition of VMware. In addition, he owns 350 shares of stock in Intel Corporation, purchased more than two years ago. All stocks are held in retirement accounts for long-term growth.

Ed does not accept gifts from companies he covers. All hardware products he writes about are purchased with his own funds or are review units covered under formal loan agreements and are returned after the review is complete.

Biography

Ed Bott

Ed Bott is an award-winning technology writer with more than two decades' experience writing for mainstream media outlets and online publications. He's served as editor of the U.S. edition of PC Computing and managing editor of PC World; both publications had monthly paid circulation in excess of 1 million during his tenure. He is the author of more than 25 books on Microsoft Windows and Office, including the recently released Windows 7 Inside Out.

Related Discussions on TechRepublic

Did you know you can take part in these discussions with your ZDNet membership?
95
Comments

Join the conversation!

Just In

RE: What you need to know about the Windows 7 Release Candidate
CharlesEtheridge@... 27th Jul 2009
Hi, Of course the question from here on in is how will the GA edition get installed over RC. all this information was very interesting but I've got RC and it is working well. I'd really like to have access to all my files in the GA version. As an example, I've got the Security Essentials as well as Word and Outlook 2007 and there are writings and addresses in them that I'd hate to lose, as happened for some reason in the Beta to RC update. Please give us another equally detailed article about the final step.
0 Votes
+ -
Windows 7's installation will keep on throwing up a error of 'not enough disk space' if you try to upgrade Windows Vista 64-bit SP1 or SP2 RC to Windows 7 64-bit.

I've tried this on 4 computers now.... all of them give the same warning of 'not enough disk space' even though they have 60, 80, 120 and 400GB's of space free on the C: drive.
0 Votes
+ -
Contributr
Hmmm, my only copy is x86
Ed Bott 27th Apr 2009
I upgraded Vista x64 to Win7 x64 build 7077 (RC branch) without incident. But I haven't yet been able to test the RC build.
0 Votes
+ -
Ed, So How Does This Work?
LegendsOfBatman 27th Apr 2009
Right about now I am as miserable a computer user there is.
Many of my programs which would work under V 32 bit refuse to work in V 64 bit. I see in your blog I would be "stuck" with a 64 bit with the RC; but, will I be stuck with a 32 bit of the Final Release?

Also, let's say I am stuck with this 64-bit OS, and I buy the Ultimate or one of these versions that will allow "XP Virtualization" will I still be screwed or will the XP V. actually help many of my older apps work? Even though I'm in this dismal 64 bit transistional world of misery?

Btw, many of the programs are games; such as the confusing Star Wars Empire at War that works, but, the expansion pack, Forces of Corruption that does not. (I'll never understand how THAT happened). But, there are other older programs that I need, such as my research Bible Software program (which apparently cant get updated until courts say they can).

Ok, more info than needed, but, just trying to figure out what hope I have of fixing things.
Thanks
0 Votes
+ -
Contributr
You can switch back
Ed Bott 27th Apr 2009
You just can't upgrade directly over x64 to x86.

For your non-games, virtualization is the obvious answer, as the virtual copy is x86. But I don't know how well those games will play in a virtualized environment. I suspect it will be unacceptable.
0 Votes
+ -
Thanks. I have an alternate solution
LegendsOfBatman 27th Apr 2009
Take this hunk o junk back, and just wait til Win 7 comes out later this year.

I suspect 64 bit wont make its way to mainstream for several years, so, if I get 32 bit version of win 7, then maybe things will work. Maybe not. But, worth a try, i guess.

Thanks for the response. I was afraid of that, but, I wanted an honest answer. So, thanks.
0 Votes
+ -
32bit apps that don't work?
PollyProteus 28th Apr 2009
Batman, What apps would those be? I've been living in 64bit land for over two years and haven't had any problems what-so-ever. And I run Photoshop, Lightroom, Visual Studios and a variety of other 32bit version apps, all with no problems.
0 Votes
+ -
Not sure
LegendsOfBatman 30th Apr 2009
what the bit rate on them are.

I have a lot of older games and software titles. I believe the techno term for old software is "legacy software".
I installed Star Wars Empire at War and it runs fine; oddly, the expansion pack, Forces of Corruption does not work.
Even more oddly, I have several games that were made for Win 95 that still works great.
One game I have, Cold War, isn't that old; just apparently poorly written. But, after installing it, I ended up having to reboot; upon reboot, my "bootmgr" was missing. How strange is that? Had to format 3x to get everything almost right. Grrr.

More oddities:
only one of my current Bible programs works on V.64-bit, and that is e-Sword. What makes this odd? Vista says it does not work, but, it does.
My most important Bible software program, however, does not. Gramcord for Windows. I believe that is a 16-bit app. It works in XP (altho, a small download file is needed, to fix the "out of envirnoment space" error) and, it works in V 32-bit. But, not enough 64-bit users have reported in on a work around. And, due to some legal issues they cant upgrade the software.
Most of my apps and many of the games will work in 32-bit, just not 64-bit.

Of course, had I known this would be a problem, I'd have never gone to 64-bit. Just not techy enough to understand all this stuff.
What i'll probably end up having to do is return the computer and wait for a Win 7 system, get a higher end version, and hope XP Virtualization works.

Ok, here's something else that is weird. I'm not into the latest and greatest, obviously; but, I do tend to stay ahead of a good number of people. I can't imagine the masses being very happy with how things are going right now.
0 Votes
+ -
Have you tried...
mikefarinha 27th Apr 2009
Have you tried uninstalling your anti-virus?
That is the only thing that has ever caused me grief when doing upgrades.
It's overhyped, and to get it to sell they need to control the OEM's, the media, and of course the blogosphere.

Actually creating what people want, rather than creating whatever and then trying to condition humans to thinking it is "normal" or "expected" or "great" would be a much better way to do business, and be much more progressive for mankind.

I guess that's out of reach though.
0 Votes
+ -
Sounds like someone needs a hug!
mikefarinha 29th Apr 2009
Yeah it hurts at first but if you stop drinking the kool-aid you'll feel much better. Honest!
You say:

Is the Release Candidate feature-complete?

Yes. Rumors that Microsoft is holding back a secret feature or radical change in the Windows 7 user interface are unfounded.

May-Jo says that XP Mode 'is the rumored ?secret feature? Microsoft was working on for Windows 7 that some have called ?Virtualized XP."'
0 Votes
+ -
Contributr
It's an add-on for some editions
Ed Bott Updated - 27th Apr 2009
It's not a new feature, it's an add-on copy of a new version of Virtual PC with a licensed copy of XP SP3. It won't affect the UI at all.

And of course it's already been announced, so, it's not a secret, either.

I've updated the post to include a mention of this feature, which will not be included with the Release Candidate or with the RTM edition of Windows 7. You'll have to download and install it separately. (OEMs can choose to preinstall it as well.)
0 Votes
+ -
The Speculative new UI
mikefarinha 27th Apr 2009
What Ed is referring to is the speculation that Microsoft will introduce a new User Interface in the RTM. I believe that Paul Thurrott has been making claims that this is a possibility... and I don't doubt Paul's logic.

Paul thinks that the Windows 7 'Glass' UI is too similar to Vista's UI thus Microsoft would want to break as much away from the bad (and mostly unfounded) publicity of Vista.
0 Votes
+ -
New UI
shellcodes_coder 27th Apr 2009
Paul:
There are also persistent rumors that Microsoft is planning to replace the Aero UI skin with a new version. I cannot confirm that, however.

Source: http://www.winsupersite.com/win7/faq.asp
0 Votes
+ -
Rumor No More
windozefreak 27th Apr 2009

See the screen shots here: www.winsupersite.com/win7/xp_mode_pre_shots.asp

Read the full article here:
http://community.winsupersite.com/blogs/paul/archive/2009/04/secret-no-more-revealing-virtual-windows-xp-for-windows-7.asp

want to compare features of each flavor? Go here:
www.winsupersite.com/win7/win7_skus_compare.asp

Window 7 is pure genius; "Seven Rocks!
0 Votes
+ -
RE: What you need to know about the Windows 7 Release Candidate
NamelessFor Now Updated - 27th Apr 2009
"Can I install Windows 7 on an external USB or IEEE 1394 (FireWire) hard drive?

No. Windows 7 cannot be installed on any removable drive."

I have Windows 7 installed and booting from an eSATA drive, so maybe USB and Firewire aren't supported, but I wouldn't say that booting from a 'removable drive' is not supported.
0 Votes
+ -
Contributr
Technical distinction
Ed Bott Updated - 27th Apr 2009
I'm referring to a drive that is identified by the OS as removable. eSATA drives appear to the operating system as fixed drives, not removable. Needless to say, you want to be very careful not to remove the drive that's running your OS!

I've updated the post to make this distinction clear. Thanks!
0 Votes
+ -
As I recall ...
mwagner@... 27th Apr 2009
... when I installed Windows 7 RC on a second partition of my Vista system, it offer to place Windows 7 RC on either partition or on one of my two USB-connected drives.

I don't think that a USB hard drive is necessarily recognized as "removable" as a DVD+/-RW drive (or even a removable hard drive) might be.

I think that the important requirement is that the boot manager must be on the boot record of the first hard drive connected to the system and I think that is why installing to a "removable media" drive is not permitted.
0 Votes
+ -
Contributr
The drives and volumes appear in the list of available install locations. However, had you tried to install the OS on a USB drive it would have blocked you. I just checked this on a few minutes ago on a drive that has a boot record. When you try, you get an error at the bottom of teh drive selection window, with a show details button that says the drive is ineligible because it's connected via USB.
0 Votes
+ -
win 7
Cocco Bill 27th Apr 2009
windows 7 is the best operating system ever.Even my machine is running win 7 7000 it works fine (64 bit)I have all the drivers (intel P43t, nvidia 8500, and others 64 bit drivers)I can't wait to install RC version, hopeing it's just a bit faster then this Beta I'm running now.
Just one thing to improve is the performance.
0 Votes
+ -
I sure hope the product matches the hype! We can all use an OS that is free of the usual 60,000+- known bugs at realease time (virtually every MS OS to date).
I think I will start lining up tomorrow to get my copy! The rush to buy should be amazing!
0 Votes
+ -
Define 'best'...
TheWerewolf 27th Apr 2009
And keep in mind, I *like* Win7. But 'best'? By what criteria? It's a great OS and a good improvement over WinVista - I know I'm excited to be moving up to it, but all OSes have their weaknesses and strengths, Win7 most certainly included.

'Best' is meaningless unless there's a target to measure against.
When installed, wil W7 RC keep up with updates issued by MS against the official product. IF not its a high risk venture to be 1 year behind the curve on updates on a new op sys.
0 Votes
+ -
Er...
Wolfie2K3 27th Apr 2009
The updates rolled out during the Beta will already be incorporated into the RC build. That would include the security fixes, the updates to Windows Defender, etc...

As far as "official product" goes - the Beta - build 7000 - is only 4 maybe 5 months old. Tops. The Beta is about as "official" as it gets as far as publically released builds go. The same will be true of the RC on May 5th.
Will it be possible to install over RC with the offical release when it comes available?
0 Votes
+ -
Contributr
I'll ask Microsoft for comment.
0 Votes
+ -
RE: What you need to know about the Windows 7 Release Candidate
shellcodes_coder Updated - 27th Apr 2009
You forgot to mention, this is the last 32-bit version of Windows. From the next version of Windows, it's just x64!!
0 Votes
+ -
Contributr
Follow-up
Ed Bott 27th Apr 2009
Yes, that's true, but I'm not sure it's "need to know" information for people considering whether they should evaluate the RC. wink I'll mention in the follow-up post.
0 Votes
+ -
Not necessarily true ...
de-void-21165590650301806002836337787023 27th Apr 2009
... Microsoft has not yet announced its platform support plans beyond Windows 7.

One has to remember that there are 32-bit-only machines still being sold today (netbooks, low-cost machines, etc.) and there are A LOT of 32-bit only machine still in use today. Depending on when MS are aiming to release Win8, they may or may not opt to support 32-bit CPU's.

And if the rumors are true that MS is planning on using some of the Windows kernel for future mobile and embeddeed platforms, then whilst they may choose to only ship 64-bit client OS versions, they will still maintain 32-bit compatability for several non-desktop OS products.
0 Votes
+ -
Follow up
shellcodes_coder 27th Apr 2009
Q: Will Windows 7 be available in both 32-bit and 64-bit versions like Vista?
A: Though I had expected Windows 7 to ship only in 64-bit versions, Microsoft now says it will be the final Windows version to ship in both 32-bit and 64-bit versions.

Source: http://www.winsupersite.com/win7/faq.asp
0 Votes
+ -
Contributr
Not an official source
Ed Bott 27th Apr 2009
Plans can and do change. You'll also notice that there is no link to an official release on that. I agree it's likely, but not a sure thing at all.
Good job staying on topic people. Thanks for the intelligent informative discussion. Without having to filter through the flames.
0 Votes
+ -
Intelligence? Microsoft?
gregdbowen 27th Apr 2009
Fanboi - not so much - I am stuck in this OS as
much as anyone. How many people use gadgets?
Really. I have never found any utility there -
rollover popups of my apps on the task bar?
Useful? I don't forget what I have open.

What truly has changed since W2K. Nothing that
I find useful.
0 Votes
+ -
Intelligence..
Wolfie2K3 27th Apr 2009
I use a few gadgets. I'll go so far as to admit that some of them are quite useless. Virtual Voodoo dolls and fart gadgets don't exactly have much utility - except to serve as something that can amuse you. That is, if you're into that sort of thing.

If you've got 10 browser IE tabs/windows (or any other app for that matter) open, having that preview is quite useful when it comes time to going directly to the tab/window you need.

But hey, you're not everyone. What works for you may not be enough for others. What works for me may be overkill for you. Just because you don't find something useful doesn't mean others can't or won't.
What are the implications to Windows Life-Cycle Policy? XP can't live forever
0 Votes
+ -
Contributr
Unchanged
Ed Bott 27th Apr 2009
Nothing has changed since I wrote this:

http://blogs.zdnet.com/Bott/?p=551
0 Votes
+ -
XP Can't live forever!?
mavr1c 27th Apr 2009
Amazingly enough DOS is still around so Don't buey the OS yet. I am sure you will find users in ten years still on XP.

OS2 dead an buried 10 years ago still has features Windows usrs would kill for and I know many users still using OS2 including myself on at least one system full time.
W7 sounds like it will be the defacto standards for years to come, if all you hear and read is half true.
0 Votes
+ -
Build 7106???? Anyone? Anyone?
itanalyst2@... 27th Apr 2009
7106 has been leaked to P2P sites...is this a legit release, and if so, why did Microsoft say 7100RC was it?
0 Votes
+ -
Contributr
From the post
Ed Bott 27th Apr 2009
"Microsoft?s work from now until [RTM] is in fixing the last round of bugs, most of which will be related to OEM configurations and hardware support."

"Interim builds will be prepared between now and the final release for testing internally at Microsoft and externally by OEM partners. "

Like 7106, all the way up to 7200 or 7777 or whatever number is chosen for the RTM build.
0 Votes
+ -
As these last rounds of bugs are fixed ...
mwagner@... 27th Apr 2009
... will Windows Updates patches be provided to bring 7100 up to the equivalent of 7106, etc.? In other words, when you install RC today, Windows Update also installs patches Will those patches bring the RC up to the current build level - such as 7106, or later?
0 Votes
+ -
Contributr
No
Ed Bott 27th Apr 2009
When you install RC today, you don't get patches, you get a complete new image. WU brings some new drivers, but on my installations of the RC there are no patches. Typically only critical security patches would be included.
0 Votes
+ -
It'll be along the lines of the Beta...
Wolfie2K3 27th Apr 2009
There will be patches along the way - for build 7100 - but no, you won't be getting whatever was in 7106.

Not even sure you'd want 7106. It has a higher build number, and yet, 7100 is the chosen one. There must be a reason why it was picked over the newer build.
0 Votes
+ -
Contributr
You have it backwards
Ed Bott 27th Apr 2009
7100 was assigned to the chosen build to indicate that it is the RC. Just as 7000 was assigned to the beta.
0 Votes
+ -
Win 7 on older machines?
usirsclt@... 27th Apr 2009
I downloaded the 2.4 Gig Win 7 Torrent (took three days to do it).

I've got an older Toshiba 1805-S274 laptop, with 512 M RAM and a 1095 Mhz processor. XP SP3 installed

Now, I realize that MS is recommending the minimum of 1M RAM, so I'm wondering whether WIN 7 will run, even with 512 Meg available.

I've seen other machines out there that will run Win XP with only 256 Meg, which is way below the recommended minimum.

Anyone here run the Win 7 RC 7000 with 512 Meg RAM?

Only startup program I am using is Norton IS 2009, with Firefox or Opera and Excel 03 or Word 03 running.

TIA for any info you can provide.
0 Votes
+ -
Don't know about 512 but....
rhonin 27th Apr 2009
I installed last beta on an old T40 with 1.5 gig.
Works but the main issue is drivers. I am able to run Vista on it (slowish....) but have not been able to get all feature working under 7.
Overall though the footprint is smaller and what does run runs significantly faster than vista.

Will likely try RC in a week or two.....

0 Votes
+ -
You know how to search the web, right?
de-void-21165590650301806002836337787023 Updated - 28th Apr 2009
0 Votes
+ -
Outsource Confidential
stillgolfing 27th Apr 2009
He doesn't need to know how to search the web. He's got you doing it for him!
  • Flagged
0 Votes
+ -
Heh...
Dave32265 27th Apr 2009
and they say us Linux users are snobbish! The guy simply asked a question. No need to get uppity.
0 Votes
+ -
Not uppity
de-void-21165590650301806002836337787023 28th Apr 2009
I asked a question and then provided a few examples to start their exploration off.

Perhaps I should have added a cheeky wink to the subject. Here's one now: wink

I used no derogatory terms, didn't tell him he was stupid, didn't mock his choice of OS, etc. I leave that to others.
0 Votes
+ -
Contributr
See my earlier post
Ed Bott 27th Apr 2009
http://blogs.zdnet.com/Bott/?p=672

If anything, performance and memory use have improved since then.
0 Votes
+ -
Hi, Of course the question from here on in is how will the GA edition get installed over RC. all this information was very interesting but I've got RC and it is working well. I'd really like to have access to all my files in the GA version. As an example, I've got the Security Essentials as well as Word and Outlook 2007 and there are writings and addresses in them that I'd hate to lose, as happened for some reason in the Beta to RC update. Please give us another equally detailed article about the final step.

Join the conversation!

Formatting +
BB Codes - Note: HTML is not supported in forums
  • [b] Bold [/b]
  • [i] Italic [/i]
  • [u] Underline [/u]
  • [s] Strikethrough [/s]
  • [q] "Quote" [/q]
  • [ol][*] 1. Ordered List [/ol]
  • [ul][*] · Unordered List [/ul]
  • [pre] Preformat [/pre]
  • [quote] "Blockquote" [/quote]
ie8 fix
ie8 fix

The best of ZDNet, delivered

ZDNet Newsletters

Get the best of ZDNet delivered straight to your inbox

Facebook Activity

White Papers, Webcasts, & Resources
ie8 fix
ie8 fix