I appear to have solved it, i found solution on Microsoft support.
I think it could be useful so i'll translate the post for everyone who may have my same problem:
http://answers.microsoft.com/it-it/wind ... 6f2d827f72
run msconfig > startup > disable everything eccept antivirus. Do not reboot.
run msconfig > services > check "hide all microsoft" and disable everything else.
Run C:\windows\prefetch and delete everything but keep layout.ini
Clean Temp Directory
Reboot.
Download and install Wise Registry Cleaner Free Portable
Repair GREEN itemes.
Control panel >internet options > advanced > restore default.
Reboot.
Sounds OK.
I think it could be useful so i'll translate the post for everyone who may have my same problem:
http://answers.microsoft.com/it-it/wind ... 6f2d827f72
run msconfig > startup > disable everything eccept antivirus. Do not reboot.
run msconfig > services > check "hide all microsoft" and disable everything else.
Run C:\windows\prefetch and delete everything but keep layout.ini
Clean Temp Directory
Reboot.
Download and install Wise Registry Cleaner Free Portable
Repair GREEN itemes.
Control panel >internet options > advanced > restore default.
Reboot.
Sounds OK.