Encountering activation errors can be one of the most frustrating experiences for any Windows user, especially when you are in the middle of a critical project. One particularly cryptic error message that has been increasingly reported by users of Microsoft Office (especially Office 2019, 2021, and Microsoft 365) is:
Open and run:
The Software Protection Service ( sppsvc.exe ) runs under the NETWORK SERVICE account. It requires specific permissions to modify files in: Encountering activation errors can be one of the