Virus that deletes everything?

I have a virus on my PC that has deleted everything, all desktop icons and everything in the start menu, how do I fix it? I dont know how to access the internet on it to download software.

That type of viruses or trojans  may be dangerous, you might need to reinstall windows hat's better way to do.

Try to remove the virus in this way. press windows button + R you will get a run command window. Here type any dirve letter type for ex "E:", the drive window will open and in the address bar type google.com, in the search box type avast. Avast website opens download the free antivirus provided by them.

After installing once restart your computer, Update the virus definitions and disconnect the system from the internet. Run a full system scan, check the scanned results. If the problem persists you need to repair windows. If not booting format the C drive (do at your own risk) formatting the drive, you will loose the data. After installing dont install the drivers...etc, install the Internet Security software perform a Full system scan. After you will come to know the any threats are there in other Drives, If there, clean them once restart your computer, but dont forget to update virus definitions before scanning.

Have a healthy PC, Install the good Internet securities like Norton, If you can buy it......