Computer Suddenly Unstable Hp Pavilion G Series Windows 7 --- Ps

[Segilla]

Full Norton scan found no problems

[galeck1947]

Download and run in Safe Mode MalwareBytes which should find any malware present and give the way to remove it. Some malware wont let you install malware detection programs so you may have to download and place it on a USB stick and run it from outside of your infected computer.