Voici LA solution, si vous ne comprenez pas trop bien l'anglais, suivez simplement le lien en bleu, et faites les modifications dans le registre comme indiqué dans le 2e message du post :
Hello there,
I've been struggling like many others with this explorer.exe freezing & restarting issue whenever I copied / paste / created a simple document or file on my desktop or into my documents. This issue seemed to be related to explorer.exe not correctly "refreshing" its state.
Here's the solution & explaination of this issue, that worked like a charm for me (and trust me I tried other tricks that didn't work at all, including tweaking the bios, checking my RAM, desactivating Windows Search Service, etc.) :
http://social.answers.microsoft.com/For ... f=required
I'm spreading the message, if it worked for you, please do so aswell, it just takes 3 mn and helps millions of people.
PS : I'm in no ways affiliated to Microsoft's Support task force. I'm just a poweruser/early adopter of Windows 7 x64.
Cheers from France,
- Z.