Windows 11 on Optiplex 780

Can I update my processor cheaper than buying another refurbished PC?

can upgrade to core 2 quad.  still way too old cpu for official Win 11 (8th gen or newer)

can install Win 11 by using tricks to bypass cpu check.

@redxps630​ Interesting should I do it so that my system will be updated regularly or stay with 10?

I am not sure about regular update

Microsoft says windows 10 will no longer be supported.

yes reason why many users want to upgrade to 11.

For 2026, at least, MicroSoft does have some continuing Windows 10 support options (at least for (extended) security updates, ESU):  there are free options and paid ones.  if memory serves, if you have and use OneDrive back-up for that PC and don't exceed the free 5? GB limit, there's a free extension of support.  I believe that the paid options start with a super-cheap deal for "Microsoft education customers," then just $1.99/month for Microsoft 365 Basic with 100 GB OneDrive, then a 30$/year for home use ESU, then $60 for a commercial use ESU.

Microsoft 365 Basic (requiring OneDrive back-up, limited to 100 GB) for $1.99/month --

https://www.microsoft.com/en-us/microsoft-365/p/microsoft-365-basic/cfq7ttc0ktxs

"Users can sign up if they use "Windows Backup" with Microsoft OneDrive. However, this will likely require paying for a Microsoft 365 subscription since OneDrive only comes with 5GB of free storage, not enough to save all the data on a frequently used PC." -- https://www.pcmag.com/news/microsoft-windows-10-extended-security-updates-free-30-dollars-rewards

"Microsoft will still be putting out security intelligence updates for Microsoft Defender Antivirus until at least October 2028" -- https://www.cnet.com/tech/services-and-software/for-windows-10-holdouts-one-more-year-of-support-will-cost-30/

"For individuals or Windows 10 Home customers, Extended Security Updates for Windows 10 will be available for purchase at $30 for one year." -- https://learn.microsoft.com/en-us/windows/whats-new/extended-security-updates