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Posted: Fri Jan 09, 2026 1:57 pm
by lx066582183
Agreed. Also, if you're on Windows 11 SE, that's actually a specific edition for schools, so you might want to double-check which exact version you're running.
Posted: Fri Jan 09, 2026 9:41 pm
by lf5IytQm3V
Same here. This happened to me with an older Office version. The end-of-support notice meant security updates stopped, so I had to plan an upgrade.
Posted: Sat Jan 10, 2026 3:19 am
by 61guuyp
This. You could also check Microsoft's official lifecycle site for exact dates, but generally "end-of-support" means no more security patches, so your device becomes more vulnerable.
Posted: Sat Jan 10, 2026 3:53 pm
by ONpdNSfAF
Yeah, Agreed. And just to add, for Office 2021, the end of mainstream support is Oct 2026, so you'll still get security updates for a while after that.
Posted: Sat Jan 10, 2026 7:59 pm
by xd676
Yeah, and it's a good idea to check your specific Windows version in Settings > System > About, since dates can vary a bit by edition.
Posted: Sun Jan 11, 2026 7:07 pm
by 908hocbdbrw
This happened to me with an older Office version. Once support ended, I stopped getting security updates, which was a real concern.
Posted: Mon Jan 12, 2026 1:22 am
by 2w91rjes
You could also check Microsoft's lifecycle page for exact dates—they usually list end-of-support by month, not just the year. Good luck!
Posted: Mon Jan 12, 2026 10:40 pm
by bBHkeC
Yeah, for Office 2021, mainstream support ends this October, with extended support going until 2026.
Posted: Tue Jan 13, 2026 9:42 pm
by opt921615
Same here. I had the same problem keeping track. For Windows 11 SE, mainstream support ends in January 2025, and the 24H2 version will be supported for 24 months from its release. Let me know if that works.
Posted: Wed Jan 21, 2026 12:41 am
by sff9854
Can confirm. Got it, and for Office 2021, mainstream support ends October 2026, but could you tell me which specific devices you're using it on?