Running Security Checks will definitely not cause anything like that, it makes no changes whatsoever to your system. The security check log does not indicate any Anti-Virus program, is that correct?
If you have access to another PC Download
Farbar Recovery Scan Tool x64 and save it to a flash drive.
Plug the flashdrive into the infected PC.
Enter
System Recovery Options I give two methods, use whichever is convenient for you.
To enter System Recovery Options from the Advanced Boot Options:- Restart the computer.
- As soon as the BIOS is loaded begin tapping the F8 key until Advanced Boot Options appears.
- Use the arrow keys to select the Repair your computer menu item.
- Select US as the keyboard language settings, and then click Next.
- Select the operating system you want to repair, and then click Next.
- Select your user account an click Next.
To enter System Recovery Options by using Windows installation disc:- Insert the installation disc.
- Restart your computer.
- If prompted, press any key to start Windows from the installation disc. If your computer is not configured to start from a CD or DVD, check your BIOS settings.
- Click Repair your computer.
- Select US as the keyboard language settings, and then click Next.
- Select the operating system you want to repair, and then click Next.
- Select your user account and click Next.
On the System Recovery Options menu you will get the following options:Startup Repair
System Restore
Windows Complete PC Restore
Windows Memory Diagnostic Tool
Command Prompt- Select Command Prompt
- In the command window type in notepad and press Enter.
- The notepad opens. Under File menu select Open.
- Select "Computer" and find your flash drive letter and close the notepad.
- In the command window type e:\frst64) and press Enter
Note: Replace letter e with the drive letter of your flash drive.
- The tool will start to run.
- When the tool opens click Yes to disclaimer.
- Press Scan button.
- It will make a log (FRST.txt) on the flash drive. Please copy and paste it to your reply.
