I struggle with Vista alot
This is what I do when I have trouble
Run AD-Adaware you have to run it manually if you use the free version
Run C Cleaner a free download
delete internet temp files
There,s no reason or rhyme here just stuff that can go amuck
In extreme cases you might run System Restore--be sure to backup import photos and documents.In fact I think it,s a real good idea to have an exterial hard drive for that stuff anyway
Any Advice I give on this Blog is use at your own risk