When upgrading an older system from Windows Home to Pro, you might encounter an error where the device fails to accept the new key directly. This is often due to the system being outdated or locked into its current version.
How to Force the Upgrade:
To resolve this, you need to reset the licensing manager and use a generic staging key to unlock the Pro features.
Step-by-Step Instructions:
Run the Command Prompt (CMD) as Administrator, then copy and paste the following block of code:
slmgr.vbs /upk
slmgr.vbs /cpky
sc config LicenseManager start= auto & net start LicenseManager
sc config wuauserv start= auto & net start wuauserv
changepk /productkey VK7JG-NPHTM-C97JM-9MPGT-3V66T
net start sppsvc
cscript %windir%\system32\slmgr.vbs /rilc
What to Expect:
- Once the process starts, Windows will begin the upgrading phase.
- 2. Your system might temporarily display as Windows Enterprise. This is a normal part of the staging process.

- 3. Final Step: Enter the Genuine Product Key you purchased from us. This will finalize the activation and revert the system to its permanent Windows Pro status.