Windows 10 Extended Security Updates (ESU) Year 1 has officially ended on October 13, 2026. Businesses using that coverage need to decide whether to purchase Year 2 or move their remaining computers to Windows 11. According to Microsoft’s commercial ESU schedule, Year 2 will last until October 12, 2027.
While your computers won’t stop working after these deadlines, the concern is whether they’ll keep receiving Windows security fixes afterward.

