Computer stops working and all programs stop responding

[GalacticViking]

I will now explain what happens:
Whenever I play a game or I am on skype with friends or I simply stay on the internet my computer will sometimes stop,all programs will stop responding (they wont start again either)and the only option I have left is to restart the pc. If this freeze happens when I am on skype the person who listens to me will hear a very loud static noise. Also if I have any video open when it happens the image will go crazy and random colors will op-up on screen before it closes itself.

Alot of people told me it might be from overheating. I changed my GPU now (the temp of the old one was about 70C now its 30C) but the GPU isnt 'overheating' now. The CPU is constant at 40C.

I will post my specs here:
-CPU: AMD Phenom II X3 710 2.60 GHz
-RAM:4 GB
-Windows 7 ultimate 64 bit
-GPU:ATI Radeon R7 260x 2GB

Anyone please give me any advice

 

[GokAy]

Update your drivers to the latest.
Are there any errors in Event Viewer that show when this happen? run eventvwr.msc

Try a clean startup http://www.sevenforums.com/tutorial...ation-conflicts-performing-clean-startup.html

run in cmd: sfc /scannow

Clean reinstall the GPU drivers: (go to AMD/Intel site instead if your GPU is not Nvidia)

Graphic Card Driver Clean Installation (Belongs to MistUnleashed):
1.Run the Guru3D Display Driver Removal Tool: Display Driver Uninstaller Download version 15.3.0.0 Display Driver Uninstaller Download version 15.3.0.2
2.Download CCleaner here (CCleaner - Download) and run both the Cleaner and the Registry Cleaner to remove left-over keys.
3.Go into C:\Program Files & C:\Program Files (x86) & C:\ProgramData and delete any leftover Nvidia files.
4.Disable automatic driver installation: https://support.microsoft.com/en-us/kb/2500967
5.Restart Computer.
6.After restart go to: Drivers - Download NVIDIA Drivers and install the latest Nvidia Package (Including the 3D Vision Drivers - Install it all). Drivers - Download NVIDIA Drivers
7.Re-enable the automatic driver installation: https://support.microsoft.com/en-us/kb/2500967
8.Run CCleaner again (as instructed in Step 2).
9.Restart Computer.

Please fill in System Specs http://www.sevenforums.com/tutorials/180324-system-info-see-your-system-specs.html
What was the old GPU, what is the new one? Did you uninstall the old GPU drivers/software?

 

[GalacticViking]

I did most of it

I updatet the drivers
Im checking event viewer now
I did a clean startup I will tell you if something bad happens
/scannow didnt find anything wrong
I am reinstalling the GPU drivers
Old GPU was a Nvidia GTX 260
The new one is ATI Radeon R7 260x 2GB
I dont know how to remove the old drivers tho

 

[GokAy]

To remove Nvidia drivers:

Open Control Panel - Programs and Features - uninstall all NVIDIA entries.
Restart
Scan registry with CCleaner

 

[GalacticViking]

done

I removed the drivers and scaned and fixed registry problems with ccleaner I will tell you if something else happens