Winrumors had posted earlier that Windows 7 SP1 would be released to the public on Feb. 22, 2011. A Microsoft blog now confirms it.
*edit – The above Windows Team blog says final build number is 7601.17514.101119-1850 (see reply #4 in that blog). This matches the build I had installed (see below).*
Now most tech pundits will tell you Windows 7 SP1 is no big deal. Certainly for the home user it contains no useful additions. It is simply a collection of security updates, bugfixes (publicly available and not).
I’ve done a little testing with the SP1 that has been floating around (wzor). Here are some screenshots and notes for those who are interested.
On my fully updated computer the total install time was 24 minutes.
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Cleaning up the SP1 files.
The command that had worked under Vista (compcln) is gone.
The new command as documented here is:
DISM.exe /online /Cleanup-Image /spsuperseded
Disk stats, GB used:
Before SP1: 21.3
After SP1: 23.2
After SP1 Cleanup: 20.7 (smaller than before the SP was installed)
Boot time:
Before SP1: 24623ms
After SP1: 25757ms
(This is taken from: Event Viewer > Applications and Services Logs > Microsoft > Windows > Diagnostics-Performance > Operational)
*edit (again) – Since we’ve pretty much established that the leaked SP1 is indeed the final build I decided to extract all the files and have a look. Most of the files in Windows 7 SP1 are dated November 20th, 2010 with a few dated November 22nd, 2010. These last few coincide with the November 22nd time stamp on the leaked Windows 7 SP1 file.