I need to wipe clean a compromised computer and reinstall the operating system.
Dell Inspiron 3647
Windows 7 Home Premium OA
The people whose computer it is used it mostly for reading e-mail, reading the newspaper and storing photos of their grandchildren.
They managed to download malware that put an unmovable message on the screen with a phone number to call and put a lot of new icons on their desktop.
I've already assisted them in putting security alerts on their bank accounts because the computer gives anyone access to their e-mail. The computer is now unplugged and not being used.
There's nothing that they have to save on the computer. The photos are backed up to a small external hard drive. They plug the drive in once a month so fortunately it was never plugged in after the malware was downloaded.
I don't need to clean the existing setup. I would just as well wipe the C drive clean and reinstall the OS. I am going to assume the OS is on a protected partition. I don't even want to turn the machine on until I am ready to work on it.
Would you point me in the direction of how to go about doing this?
Thank you very much.