Issue
There is a virus in the folder System Volume Information .
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You'll have to manually delete the infected files found in the c:\System Volume Information\_Restore folder, they are part of the Win Xp backup (those backup files were created when the system was infected).
The System Volume Information folder is a hidden, system folder that the System Restore service uses to store its information and restore points.
There is a System Volume Information folder on every partition on your computer. No application except the System Restore service is allowed to access this folder.
In order to delete the infected content of _restore please follow the steps:
1. Right click the My Computer icon on the Desktop and click on Properties;
2. Click on the System Restore tab;
3. Select each drive and:
a) click Settings;
b) Move the ruler to miniminum;
c) Press OK and confirm the eventual confirmation;
4. Put a check mark next to 'Turn off System Restore on All Drives';
5. Click the 'OK' button;
6. You will be prompted to restart the computer. Click Yes.
When System Restore is disabled the content of the folder is deleted, the infected files included.
Afterwards you can re-enable the System Restore service should you want to use it