Cannot select multiple files

After installing a Service Pack 1.0 for my Windows Vista Home Premium edition I’ve noticed, that I cannot select more than one file at a time. Well, I was worried about it, so I searched i little and found an answer to this problem:

So, if You have problems with selecting multiples files, then try this:

1. Open Regedit
2. Find path: HKCU\Software\Classes\Local Settings\Software\Microsoft\Windows\Shell\
3. Delete the Bags & BagMRU keys

After doing it restart Your Windows Vista and everything should be back to normal again :) .