To resolve error code: 0x800c0008 issue, we will analyze and identify the cause of the issue.
Make sure that Windows is activated. To activate it follow below steps:
a.Press Windows key + W.
b.Type Activation and press Enter.
If the Windows is activated then you can try the following methods to resolve the issue.
Method 1:
1.Press "Windows key + R" and type "services.msc".
2.Right-click Microsoft Account Sign-in assistant and choose "Properties".
3.In Startup type, choose "Automatic" then click "OK".
Now you can try to switch to Microsoft account a check if it helps.
Method 2:
If you are using any proxy to connect to Internet, disable the proxy connection and check if it helps.
Disable proxy internet connection
If you use any proxy connection, then follow the steps to disable proxy:
1.Click the "Gearbox" at the top right corner in Internet Explorer.
2.Click the "Tools" button, and then click "Internet Options".
3.Click the "Connections" tab, and then click "LAN settings".
4.Uncheck the "Use a proxy server for your LAN" box.
5.Click "OK".
Method 3:
If the issue persists you may run the Microsoft Accounts troubleshooter and check.
To make sure that the Microsoft account services are up and running, go to the Service status webpage.
https://status.live.com/
Check whether still you get error code: 0x800c0008.
You might see this 0x80072f8f error if the PC's date and time are incorrect or Windows is having trouble connecting to the online activation service and can't verify your product key.