Lost everything... I think

So I logged onto my Windows 7 account to find everything reset to factory default and all my desktop icons (which are important) gone! Everything is factory default. If I go to Windows --> User --> and select my account I have all my files there and can open them, but on the account itself everything is factory default. The other account on the computer is fine, just this one. At the moment I am backing up my computer then doing a system restore. Will this work? Thanks.

Sounds like you have a poltergeist.

System restore is a good place to start, providing your system is not infected.

Restoring an infected system will spread the virus.

You should first try running a few different cleaners.

Before you do anything else back up your files which you say you can access now.

If your files are there under a different account, can you log out and log back into that account?

If not what accounts are available at the Log On screen, and in Control Panel>User Accounts>Manage other accounts?

As suggested try System Restore, then run a full Malwarebytes scan. Report back results of all steps given thusfar.