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I was closing open windows and about to turn my computer off, when I noticed a windows saying that I needed to restart to save the changes, and giving me the option to restart now or later.

The problem is, I'm nearly positive I didn't make any changes. Is there a way for me to figure out what's going to change?

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Do you have automatic updates enabled on your PC? – PeanutsMonkey Apr 12 '12 at 8:12
@PeanutsMonkey, No, I have it set to check but not to update automatically. I had updated to MS Word 2010 yesterday, which had made the updates automatic, so I had changed it back. All this was yesterday though, and I've restarted at least three times since. – user1125620 Apr 12 '12 at 8:16
Those messages sometimes come up after a driver install, did you connect some USB or similar device recently? – Bob Apr 12 '12 at 8:17
@Bob, Nothing new. My printer is normally plugged in, but was unplugged after I cleaned my computer recently. I did plug it back in today, but I've never before received that message upon doing it. – user1125620 Apr 12 '12 at 8:19
Scan for malware just in case. – Moab Apr 12 '12 at 15:19
up vote 1 down vote accepted

it might happen that you have turned-on automatic updates to download & install updates anytime when there are new updates available, after doing that the computer will prompt you to save all your work and restart your pc or restart later.

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No, I'm pretty sure it's not that because otherwise there would be the little alert symbol over the shutdown button on the start menu. – user1125620 Apr 12 '12 at 8:17

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