Entering a key does not activate the system when upgrading Win10

When you upgrade and install the Win10 system, you need to enter the key to activate it. However, sometimes the user can't activate Win10 by entering the key, and there is a 0x8007007B error. How to solve this problem?

& ldquo; error Detail & rdquo; in Error Code: 0x8007007B

input 6P99N-YF42M-TPGBG-9VMJP-YKHCF

& ldquo; product security lock Change & rdquo ; hint 0xc004e016

Solution:

1. Write down the key used for activation.

2. Copy the 2.0 folder in C:\\Windows\\System32\\spp\\store. Save the key and the 2.0 folder properly and the backup ends.

Restore method:

1. After the system is installed. Open “Services , find the Software Protection service, if the service is running, pause it (right click).

2. Copy the cache folder, data.dat file (hidden file) and tokens.dat file in the backup 2.0 folder to C:\\Windows\\System32\\spp\\store\\2.0. The same name file.

3, press Win + X shortcuts, open "ld command prompt (admin)", enter the following command to run

slmgr.vbs -ipk xxxxx-xxxxx-xxxxx- Xxxxx-xxxxx

Note: xxxxx-xxxxx-xxxxx-xxxxx-xxxxx indicates the activation key and replace it yourself.

4, restart the system to restore the system activation status.

PS: In addition, the new Win10 preview version can be activated automatically.

The above is the solution to the system that can't activate the key when upgrading Win10. According to this method, Win10 can be activated as long as the key input is correct.