Hi, [NAME]  If your Optiplex 9010 supports UEFI and secure boot like my Optiplex 7020 does, if you want to try out W11 on your PC, it is relatively easy to do... I would make a system image of your current W10 installation prior to updating to W11, so you can easily reinstall W10 in the future.  I used the free Macrium Reflect software to do that, under the Backup at Home section. Macrium Software | Reflect Free Edition First make this registry change... [URL] Then download the Windows 11 ISO file (3rd option), not the W11 installation assistant. Download Windows 11 (microsoft.com) Then open the file with Windows explorer, and click on the setup application. To do that, right click on the ISO file and select 'Open With' and select Windows Explorer. After you double click to run the setup application, you should get an 'Install Windows 11 window,' and you can now upgrade to W11. You just have to accept the agreement that comes up during the upgrade process about your PC not meeting the requirements, etc., etc.. My unsupported W11 PC's got all of the W11 updates.  I have upgraded 5 different PC's to W11, and they seem to run a little better on W11 than they did on W10. However, I don't know how long they will continue to get all of the updates, or what will happen when the new build of W11 comes out next year in October.
Is Windows 11 compatible with a Dell OptiPlex 9010 AIO? Also add a Inspiron 1501 if it counts.
Windows 11 Compatibility question