Forum Discussion
M365 Win 10 E3 activation issue
Option 1
Microsoft E3/E5 needs Windows 10 Pro Licence on first to install Windows 10 Enterprise, if you didn't have W10Pro then you need to purchase and install that first.
Option 2
"Cannot connect to server" this sounds like it has registered a KMS instead of a MAK key.
See if it is looking for a KMS Server:
Open CMD as an administrator. At the command prompt, type the following command, and then press ENTER: nslookup -type=all _vlmcs._tcp>kms.txt
Open the KMS.txt file that is generated by the command.
Option 3
Sometimes there are registration delays in validating licences, keep trying and also check to see if the client isn't being blocked by your firewall
Option 4
the Microsoft E3/E5 requires the PC to be Azure Joined and the user to have rights to join Azure, make sure the registered user has permission in AAD.
Option 5
Make sure the PC is up to date with the latest updates AAD has a minimum requirement
is updates fail, delete the Windows Update Cache and run this in elevated CMD
wuauclt.exe /detectnow /updatenow
My client purchases WIndows 10 Home computers from big box stores. We run the update to Windows 10 Pro via the Microsoft Store ($99) then connect the computer to Azure AD as all users have Microsoft 365 licenses. I thought the upgrade would be to Windows 10 Business, so why does it show Enterprise and not able to activate? Mark Masiak