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Error 0x80072f8f can occur when activating Windows 10 and Windows 7, as well as this error can occur when activating Microsoft Office. In addition, such an error can occur when trying to install updates on Windows 7 and Windows 10. In this article, we will consider for what reasons this error can come out and how to fix it.

Error on Windows 7:

Error on Windows 10:

Error in Microsoft Office:

There are several solutions, let's consider each one separately.

1. Incorrect system time and date.

A downed time zone, or an incorrect system time and date can cause errors when activating Windows and Microsoft Office. The solution to the problem will be to set the correct time and time zone manually, or use automatic synchronization.

2. Install updates. (Windows 7 only)

This error often occurs due to the absence of the following updates, download and install them manually from the Microsoft website:

dotnetfx35.exe (.NET Framework 3.5) - Download

KB3033929 - Download for x32 / Download for x64

dxwebsetup.exe - Download

Only for x32 bit systems:

KB2839894-x86.msu - Download

KB2862152-x86.msu - Download

KB2868626-x86.msu - Download

3. Activation by phone.

You can use the activation by phone in text mode without a call, instructions:

- In the error window, we go to other activation methods.

- Next, we switch to automatic activation by phone

- Select your country in the drop-down menu, for example "United Kingdom" and click next.

- Now we have moved to the activation window by phone. Pay attention to the "Step 2", six-digit numbers in each block from 1 to 9, they will need to be entered into text activation by phone. Attention: You will have your own numbers in step 2 and you need to enter exactly what is on your activation window by phone, in the screenshot below is an example.

- Go to the GET CID text activation page. On the page of the online phone activation bot (Microsoft Self-Service Support) there is a brief instruction on how to use it.

After entering all the numbers in the fields from A to H, in the activation window by phone, click "Next" and activate your system.

That's it, if you have any additional questions, you can ask them to our technical support by e-mail - [email protected]

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