Microsoft Windows

How to Activate Windows 10 DD Keys

To activate Microsoft Windows by Phone method, follow the guide below:

1 – To enter/change your product key within Windows 10, follow the screenshot below.
(Start > Settings > Update & Security > Activation > Change product key)

2 – You will be prompted to enter product key. Enter your product key purchased. Then, click “Next”.

3 – After entering the product key, you will receive the following error code 0x803F7001.

4 – Press Windows logo key + R key to open Run, then type: SLUI 4, then click OK. (Note that there is a space between SLUI and 4).

5 – Select your country or region, then click Next

6 – An Installation ID will be generated. (In our example we got 9 groups of 7 numbers).

7 – Go to and Submit Installation ID

8 – Check your email inbox/ Spam/ Junk folders to find Installation ID will be received within 5-10 minutes maximum 2 hours

9- Copy and past it group by group in the activation pop-up window Then, click “Activate Windows”.

10 – Done, your office is successfully activated.

Congratulations on success if need more help please call 072 257 28 27

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