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Hi Jones,
Were there any changes (hardware or software) made to the computer prior to the issue?
I appreciate the efforts which you took to get the issue resolved.
I understand the frustration when things don't work as expected.
Method 1: Place the computer in clean boot and check if it helps.
To help troubleshoot error messages and other issues, you can start Windows 7 by using a minimal set of drivers and startup programs. This kind of startup is known as a "clean boot." A clean boot helps eliminate software conflicts.
**How to perform a clean boot in Windows**
Note: Check the title “How to reset the computer to start as usual after clean boot troubleshooting” for reverting to normal mode.
Method 2:
Run the Microsoft Safety Scanner in full scan mode, and remove all the threats that get detected by it and see if the issue persists.
Note: The Microsoft Safety Scanner expires 10 days after being downloaded. To rerun a scan with the latest anti-malware definitions, download and run the Microsoft Safety Scanner again.
The Microsoft Safety Scanner is not a replacement for using an antivirus software program that provides ongoing protection.
Please take a backup of all the data to an external hard disk before performing a scan as it could result in data loss.