Please help computer freezing problem

[BenDbass]

Ok so i have this really weird problem. My computer will like freezing everything but the window im in but i can still interact in the window and Alt-ctr-delete and i can alt tab to change windows but when it changes sometimes that window wont work. Annoying as hell

heres comp specs

8gb ram
amd phenom 2 X4 955 clocked at 3211
Asus M4A78t-E motherboard
corsair 750 watt power supply'
standard multi dvd drive
Nvidia geforce 450 graphics card
d-link internet card
Cisco internet USB adapter

thank you,
ben

 

[clutchc]

Try cleaning your system of 'crap' and registry errors first. Run CCleaner. Do the Clean and Registry both. Reboot.
http://www.piriform.com/ccleaner

You may also want to rid your system of uneeded start up programs in "System Configuration" in Windows.
http://windows.microsoft.com/en-US/windows-vista/Start-System-Configuration

 

[dalauder]

I've had bad Windows installs that do something like that with Ctrl+Alt+Del allowing a workaround. I'm sorry, but I think you might need to reinstall Windows. Nothing else I've tried works.