Microsoft Windows 10 Pro Isntall

[scattman57]

i have just purchased a pc with windows 10 pro installed from a friend
it a nice pc but the computer has a few problems with viruses
i have no backup recovery disc to reinstall a setup now i am not really pc savi so
my question is if i purchase another windows 10 pro with a different licence would it put a full recovery into the pc or would it conflict with existing and be a waste of money
i have searched on line on places like ebay and amazon and prices go up and down from around
£20.00 to around £100.00
i dont to waste money if it is to no affect
any ideas
cheers

[JimF]

If you purchased another licence but no actual copy of Windows itself on CD-ROM or whatever, you'd need to find some way of downloading it first so that you could completely wipe the existing installation with the new one, thereby getting essentially a brand new virus-free machine.

[Togo]

If you have no files on it that you wish to save have you tried going into settings and doing a reset? This will give you a clean os and will remove all but the worst malware. Yo will though have to set up your accounts and what not but you would have to do that if you spend unnecessary dosh on a new os. Settings(either click the windows logo bottom left or press the window key on the keyboard).
From the pop up menu click on the cogwheel.(Settings)
Scroll to the bottom and click on "Update and Security".
In the new menu click on "Recovery".
Where you see the grey box that says "Get Started" under the Reset this PC header click inside it.
Choose the "Remove Everything" option.