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Windows 8.1 Activation Error 0xC004F012

 If Windows 8.1 will not activate, try following these steps:

1. Press Windows key + X then click Run, then type: slui.exe 4

2. Next press the 'ENTER' key

3. Select your 'Country' from the list.

4. Choose the 'Phone Activation' option.

5. Try following the prompts to see if you are able to manually activate Windows.  If it works, GREAT!  You are all set.

IF NOT........

6. Stay on the phone (do not select/press any options) and wait for a person to help you with activation.

7. Explain your problem clearly to the support person and hopefully they can assist.

OR, you can always try to contact the computer manufacturer to see if they can and will assist.


At any time, you can contact us here at CompuSave for paid support to assist with these steps.

CompuSave Computers Inc.

Your Technical Team - On Your Side

Call or Text: 519-863-6336  -  Email: support@compusave.ca

Website: www.CompuSave.ca


Posted: August 2015

Author: JH