First, backup activation information
When WIN8 is successfully activated, the activation key is saved as Notepad, and the C:windowssystem32sppstore store folder is copied to another partition or mobile device to save the backup activation information.
Second, restore activation information
1. Right-Win8 traditional desktop, select command Prompt (admin), open Command prompt cmd window in admin mode.
2. Enter the RESTORE command: Enter SLMGR/IPK xxxxx-xxxxx-xxxxx-xxxxx-xxxxx, followed by the previously recorded activation key, then press ENTER.
3. The installation key was successful; the computer appears to have successfully installed the product key: Xxxxx-xxxxx-xxxxx-xxxxx-xxxxx's prompt, click OK.
4. Restore store: Copy and paste the store folder that was previously backed up to C:windowssystem32sppstore and replace it with a replacement prompt.
5. Reboot the computer and reboot the computer properties to see if the activation is successful.