Fix Error Code 0x8007007b We Can’t Activate Windows On This Device As We Can’t Connect To Your Organization’s Activation Server
slmgr /skms kms8.msguide.com
slmgr /ato
Restart your PC
Step 1) Run Activation Troubleshooter SLUI
Step 2) Try change product key option
In case Windows 11/10 came preinstalled and you don’t know the product key then use this command in windows powershell/command prompt:
(Get-WmiObject -query ‘select * from SoftwareLicensingService’).OA3xOriginalProductKey
Step 3) Run these commands
ipconfig /flushdns
ipconfig /release
ipconfig /renew
netsh winsock reset
netsh int ip reset

Restart your PC
Step 4) Run this command
cscript //windows//system32//slmgr.vbs -ato
Step 5) Use phone activation
Slui 4
Step 5) Use Command Prompt
slmgr -ipk xxxxx-xxxxx-xxxxx-xxxxx-xxxxx
x stands for license key
In case Windows 11/10 came preinstalled and you don’t know the product key then use this command in windows powershell/command prompt:

(Get-WmiObject -query ‘select * from SoftwareLicensingService’).OA3xOriginalProductKey

If license key not seen in command prompt, then use the command in PowerShell Window

Run this command on first command prompt window:

slmgr.vbs –ato

Reboot Your computer and now try activating your windows again.
Step 6) Install Windows 11/10 Using USB Flash Drive (You will lose data and apps on your computer so create a backup first)
https://youtu.be/IQEzbec2GU4
Step 7) Contact Microsoft- https://support.microsoft.com/en-us/contactus/

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