I'm considering doing a clean install of Windows Pro 8.1 on an ASUS VivoTab ME400C-C2-BK tablet to recapture the space from the restore partition. After doing some research it seems others that have done this run into conflicts if attempting to restore/repair file corruption through Windows down the road because it looks at the BIOS and finds Core version reference. Is there a way to insert 8.1 Pro key into BIOS to prevent version conflicts? If not, is there a way to avoid version conflict issues with the BIOS? (simply reinstall?) Thanks in advance for any clarity. I did search here but came up empty.