The perfect solution for the stubborn virus files can not be deleted under the Win7 Ultimate system

1. First press the “WIN+R” in the win7 Ultimate system and open the “Run” window, then enter “In the Run dialog” ;gpedit.msc”, press Enter to open the Group Policy Editor;

2. In the pop-up interface, expand “Computer Configuration & Rarr; Administrative Templates & Rarr; System & Rarr; System Restore & rdquo; Find and double-click "Close System Restore" in the right side of the window, set it to "already enabled", and click the OK button to save and exit. This is to disable system restore.

3, then expand again & ldquo; computer configuration & rarr; management template & rarr; Windows components & rarr; Windows Installer & rdquo;, double-click in the right panel & ldquo; close the creation of system restore checkpoint & rdquo;, set it to “Enabled”;

4, then use the command [cacls “c:System Volume Information” /g everyone:f] in the command prompt window to give full control to the current user's permissions. Then you can delete the “System Volume Information” folder.