Two days ago a shady pop up was left running in the background for hours, when I returned to my computer, I had some error in the pop up window that network connection was lost from sleep.
Today I woke up in the middle of the night to the sound of my computer which was asleep to a windows bloop. I noticed my computer had woken up from it's slumber.
Windows 10 constantly has High Process, Disk and Wifi Usage for service which I do not need running.
What is the best way to assure my computer is clean?
Download a copy of windows, from a secure machine as well as the bios for my computer,
Restart My computer, Flash the bios, Reformat my machine, and the only access my old files from a VM?
Is there anything other steps I should take as a precaution, like Flash my video card, etc. I know this question may sound broad, but I am trying to understand what the steps are for fully securing a computer?