There're things you can do including running SFC, Malwarebytes, AdwCleaner, Junkware Removal Tool, TDSSkiller, and doing a full system scan with your antivirus.
To further diagnose the problem Please download and run Speccy. After running it click File -> Publish snapshot... Copy and paste the link it gives you into your next post.
Then download minitoolbox and run it with the following boxes checked:
List last 10 Event Viewer Errors
List Installed Programs
List Users, Partitions, and Memory size
List Minidump files
Copy the resulting log and paste into a reply here.