Paul NZ :
No you'll have to reinstall windows and start all over again
Actually a correction on this advise.
IF you bought this as a OEM (HP, Dell, etc.) computer you will need to buy a NEW COPY of Windows. You can NOT use the OEM edition that came with it, it will refuse to install, repair, etc. due to it being ONLY sold with the Original Equipment which your changing out.
If you 'built this myself' model, and it is a "off the shelf" copy of Windows, then yes best practice has always worked to completely wipe and start CLEAN reinstall of Windows. Then proceed with drivers, Antivirus, Antimalware and then the apps you want to use on it.