Hi,
Thank you for contacting Microsoft Community,
I can understand the Inconvenience caused, we are here to help you with your concern.
I really appreciate your effort in trying to find the cause of the issue.
As per the description provided, it looks like it could be due to faulty hard drive and virus.
I would suggest you to manually run the Chkdsk command prompt utility to check a drive. To do this, follow these steps:
- Press “Windows key + X “, Select Command prompt (Admin).
- Type the following command, and then press Enter:
chkdsk /scan <Drive letter> :
3. After the scan is complete, you are notified if errors are found.
4. If errors are found, run the following command to resolve the errors:
chkdsk /spotfix <Drive letter> :
The chkdsk utility may require you to restart the computer or to force unmounts. In this case, make sure that you save your work to avoid data loss.
Important: While performing chkdsk on the hard drive if any bad sectors are found on the hard drive when chkdsk tries to repair that sector if any data available on that might be lost
I would also suggest you to scan your computer with the Microsoft Safety Scanner.
Click on the link below to scan your computer.
http://www.microsoft.com/security/scanner/en-hk/default.aspx
Important Note: Antivirus software can help protect your computer against viruses and other security threats. In most cases, you shouldn't disable your antivirus software. If you have to temporarily disable it to install other software, you should re-enable it as soon as you're done. If you're connected to the Internet or a network while your antivirus software is disabled, your computer is vulnerable to attacks.
Hope this information is helpful. If you have any further concerns, please get back to us and we will be glad to assist you further.