Reinstall windows 10

[AleksiDj52]

Question: Can i reinstall windows 10 keep everything files folders and settings but will this delete viruses or not?

 

[Dark Lord of Tech]

For a bad virus infection , best to backup and perform a FULL clean install.

 

[Colif]

what he said...

is there anything on C drive you want to rescue? try making this on another PC: http://www.howtogeek.com/howto/windows-vista/use-ubuntu-live-cd-to-backup-files-from-your-dead-windows-computer/
Also, on another PC, download the Windows 10 media creation tool and use it to make a win 10 installer on USB

change boot order in BIOS so USB is first, hdd second
boot from installer
follow this guide: http://www.tenforums.com/tutorials/1950-windows-10-clean-install.html

when you reach screen asking for licence, click "I don't have a key" and win 10 will continue to install and reactivate once finished

On the screen where you choose where to install win 10, if it gives you an error about GPT drives, delete all the partitions on the hdd and press next. If it still gives error, cancel out of the installer and restart PC and start installer again, it will accept next on that screen this time (some PC just need a restart here)

 

[AleksiDj52]

For a bad virus infection , best to backup and perform a FULL clean install.

i mean this option (keep everything files and settings) will delete viruses or not?

 

[Colif]

Its not guaranteed, the virus could be hiding in the image files windows uses to rebuild itself so only proper way to knowlingly destroy virus is a fresh install.