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Operating systems software Reviews
15,670 Reviews

Windows Vista SP1 Release Candidate

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Manufacturer: Microsoft

Our Rating: We rate this 4 out of 5

The just-released Windows Vista SP1 Release Candidate (RC), like the previous beta, does more to improve the internal plumbing of Windows Vista than it does to make any major changes to the interface.

The just-released Windows Vista SP1 Release Candidate (RC), like the previous beta, does more to improve the internal plumbing of Windows Vista than it does to make any major changes to the interface. UPDATE: Windows Vista SP1 - the final, definitive review

Windows Vista SP1 RC targets performance, reliability and security, leaving the operating system's features and functionality largely intact, with the exception of allowing users to substitute an alternate search tool for the one built into Vista, and removing the Search link from the Start menu.

See also: Windows Vista: the definitive review

When the final version of Windows Vista SP1 (currently slated for next year) is released, the big news will be the death of the so-called Kill Switch, which Microsoft prefers to call "reduced functionality mode".

Whatever you call it, though, Windows Vista SP1 RC's elimination of the switch will be good news. Currently, if you don't activate your retail copy of Windows Vista after 30 days, your desktop turns black, and your icons and the Start menu vanish. You can't open your files (although you can copy them). You're able to use a web browser for only an hour before you get logged off.

The same thing happens if Windows Vista decides that you've installed it on a different PC than your original one, and you ignore a three-day grace period for contacting Microsoft. Vista might also decide it's been installed on a different PC than the original if you make a substantial number of hardware changes to your original PC.

In the shipping version of Windows Vista SP1 (though not in the current RC version), the Kill Switch will become more of a "Nudge Switch". You'll be frequently reminded that you need to activate Windows, and the desktop background will turn black. Try to change it to another background, and an hour later Windows will turn it black again.

In addition, you won't be able to download signed drivers and optional updates via Windows Updates, although you'll still be able to get critical security updates. Not a pleasant experience, certainly, but at least you'll still be able to use the operating system.

Changes since the previous beta

Not much has changed in the RC version of Windows Vista SP1 compared to the previous beta, although there are slight differences. Installation on a 1.83GHz Core Duo laptop took under an hour; the previous beta took an hour and 15 minutes. The previous beta didn't clean up after itself, and left about 1GB worth of files in a folder that was no longer needed after installation. Windows Vista SP1 RC, on the other hand, deletes that directory and files.

A bug we found in the previous beta still remains. On our test home network, which uses a Linksys WRT54GX4 router, we couldn't connect from our Windows Vista SP1 RC test machine to any other Vista PCs on the network. And we couldn't connect from Vista PCs to the test machine, either.

However, we could connect to XP machines, and from XP machines to our test machine. That bug appears to be an isolated one, because other reviewers have been able to connect to Vista PCs on their networks.

Overall, in Windows Vista SP1 RC, Vista seems a little zippier when it connects to XP PCs. Copying files between PCs seems faster, and the time estimates that Vista gives for how long that copying will take seem to be more accurate.

Microsoft claims there have been other, minor changes as well, including a reduction in the size of standalone installers. It says that the Windows Vista SP1 RC stand-alone installer packages with 36 languages are 50 percent smaller than the previous beta, and the standalone installer packages with five languages are 30 percent smaller.

In addition, the company says, disk space required for installation has decreased, and in RC, if Windows Vista SP1 discovers there's not enough space to install, it will tell you how much extra space you need. Microsoft also claims that the installation is more reliable, with a higher percentage of successful installs.

NEXT PAGE: changes, the future and our expert verdict > >

Windows Vista SP1 Expert Verdict »

800MHz processor
512MB system memory
DirectX 9.0-compatible graphics processor
  • Overall: We give this item 8 of 10 overall

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