Follow The Below Steps:

• First, find out the causes of symptoms in your PC.
• Remove the external drives connected to your PC.
• Back up the files and folders in the driver or other external drives.
• Download and Install Anti-Virus software like McAfee on your PC.
• Run the Full Scan and wait until the process gets completed.
• Check the errors and malware found in the report.
• Delete the files with malware and close the anti-virus.
• Re-start your computer.