Info.
Installed SP1 the other day (64 bit). No problems, whatsoever. -tp
Service Pack 1's most significant improvements
Uh, there really aren't any. At least not for the average PC user. (SP1 does have a few nifty new features for Windows Server 2008 R2.) No need to take my word for it. Download Microsoft's official description, "Notable changes in Windows 7 and Windows Server 2008 R2 Service Pack 1," available on a Microsoft Download Center page, and see for yourself. "The impact of SP1 on the Windows 7 client operating system is considered to be minimal. Included changes address minor usability issues in specific scenarios," according to the unusually sedate Microsoft manifesto.
To save you a bit of time and effort, here's a summary:
- Higher-definition connections with Remote Desktop: If you use Remote Desktop (I prefer the third-party service LogMeIn), installing SP1 on both PCs sets up high-definition connection via a new technology Microsoft calls RemoteFX. Snappy name. Based on virtualization technology (info page) Microsoft acquired two years ago when it bought Calista Technologies, RemoteFX makes it possible for full graphics to show through on remote sessions. Someday, we're promised, you'll be able to use RemoteFX with your phone. I'm not holding my breath — I'm not even sure I'd want it.
- More Windows Live ID support: A technology Microsoft calls "Microsoft Federation Gateway" will give SP1-enhanced PCs improved Windows Live ID authentication to non-Microsoft sites, using a long-established Web services protocol known as the WS-Federation Passive Requestor Profile. I thought Win7 already had WS-Federation profiles (detailed in an MSDN article) nailed, but apparently some fix is necessary.
- An HDMI patch: I have no idea why MS emphasizes this as one of the noteworthy changes in Win7 SP1. It's a bug fix to keep HDMI working when a PC is rebooted.
- An XML Paper Specification fix: The 10 of you who actually use XPS instead of PDF will be pleased that SP1 fixes a print bug affecting mixed portrait and landscape documents.
- Even more-obscure fixes: These include restoring previous folders at sign-in, IKEv2 protocol improvements (used in VPN connections), and a hotfix rollup from November (KB 982018) for Advanced Format disks. Little stuff.