If you’re trying to activate Windows and you’re running into the 0x80072F8F error on your PC, laptop, or Microsoft Surface tablet then here is the quick and easy solution.
In order to combat piracy Microsoft is becoming concerned with making sure that your computer is running a “real” version of Windows. So they’ve written checks and balances that make sure that everything is correct on your computer.
And you get the error usually when one of those checks and balances fails.
Fix #1
Usually this problem is resolved by fixing your date and time settings. Go back through the setup and make sure that your time, date, and timezone is correct.
Try to activate now.
Fix #2
If you’re still getting the error then try to dial back the time to a few days before today. Go back through the setup and change the settings to go back a day or two.
Try to activate. Remember to correct your date settings afterwords.
(You can also go through the setup without the serial number and without activating. Simply choose the trail/later option and once you’re in Windows change the time settings there and then enter the serial number and attempt activation. This applies to Fix #1 and Fix #2.)
Fix #3
The BIOS of your computer is a program that loads before Windows does. It has its own time and date settings that could possibly be incorrect.
Restart your computer/tablet and turn it back on. Watch carefully for any messages that say something like “Press F12 to SETUP” or “Press F11 for BIOS”.
Once you’re in the BIOS make sure that the date and time listed there is correct. If it isn’t then fix it, save your changes, and restart the computer.
Try to activate now.
this problem not solve in my computer especially in the windows defenders