: You can still activate Windows 8.1 using a valid 25-digit product key via the PC Settings menu or by phone if online activation fails.
: Stores like SoftwareMedia and FastSoftwares.com still list OEM and single-license versions. buy microsoft 8.1 pro
: Using Windows 8.1 in 2026 is highly discouraged for primary devices because it is vulnerable to new viruses and malware without security patches. : You can still activate Windows 8