Cannot activate windows on this device. What to do?

Question

Windows

Windows has been activated. Writes: Failed to activate windows on this device because we can not connect to your company's activation server, make sure you are connected to your cooperative network and try again if the activation problem persists, contact your company's support specialist error code: 0x8007007B

Answer 1

Activation settings on a corporate KMS server can be viewed using slmgr /dlv or slmgr /dli. You can
explicitly specify a domain for searching for SRV records using the slmgr /skms-domain contoso.com command.
Specify a specific corporate activation server: slmgr /skms kms.contoso.com or slmgr / skms 10.0.0.1
Clear settings for slmgr /ckms-domain or slmgr /ckms if domain or activation host were set respectively.
If there are no explicitly specified domains to search for SRV records or KMS servers, it is possible that the domain is specified on the interface of the network card (the domain suffix is ​​specified in the properties of the network interface) or in the system properties Additional system settings - Computer name - Change button - Advanced button - Primary DNS field - suffix of this computer
The third option for setting the activation server is the Option 15 (DNS Domain Name) parameter in the DHCP server settings.
I can assume that the computer was set up in a work network and it was automatically activated on a corporate server, but after 180 days it needs to be reactivated and there is currently no access to the corporate network.