You can finally get an answer on those strange Windows error codes through Microsoft’s troubleshooting site, Fix Windows Update Errors.

Microsoft Corp. has introduced a new tool called “Fix Windows Update errors” on its support page that will help users fix update-related errors. The Fix Windows Update errors tool will be able ...

The computer (a Compaq laptop) loads XP (SP2) fine up until the point I try to login to Windows, at which point it gives me "0x80070002" citing an inability to validate the Windows license.

As described by Microsoft at the time on the Windows 10 health dashboard, "Windows Sandbox may fail to start with 'ERROR_FILE_NOT_FOUND (0x80070002)' on devices in which the operating system ...