With a MAK key, yes, up to the limit set in your volume agreement. With KMS, there is no limit on clients, but you must have a KMS host server.
You are using the GVLK but no KMS host is reachable. windows 10 pro non core edition product key
You entered a Retail or OEM key (e.g., from a sticker on a laptop) into a Non Core installation. With a MAK key, yes, up to the
Here’s a technical write-up regarding , focusing on what “non-core” implies, how product keys function in Windows 10, and the legal/procurement landscape. With a MAK key