Insert the installation disk or flash drive. To install a new operating system on Windows, you must have the operating system's install tool on a DVD or flash drive, and the disk or flash drive must be inserted into your computer. Click the Windows logo in the bottom-left corner of the screen.
Check processes running in your PC using online security database. You could use any type of scanning to check your PC against Viruses, Trojans, Spywares and other malicious programs
Recommended: * To help you analyze the vistumbler_v9-3.exe process on your computer, 'Asmwsoft PC optimizer' program have proven to be helpful.