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#21
Hi,
Doesn't matter which version you're on now just use the media creation tool
Create an iso for another computer
Then have it either create a dvd installer or a usb installer
Boot to the created installation media and use the custom install
Delete all existing partitions and click install.
I would backup all personal files first.
You might also be able to save the iso to your desktop and run the setup.exe from there
But I'd still backup all personal files first to a external device.