I've been using BOINC for many years. I've received multiple certificates for computer usage over the years from BOINC. I just changed to a new computer and went from W10 to W11. I have Boinc installed and it appears to be running, but there is not a BOINC option under screen savers. I also no longer have any idea what my account name is or how to make sure that I am connected to my old account. I can login here on this forum, but I cannot login to any of the account manager websites options on Boinc. I've tried every email that I have and every option that I can think of, but none are found.

I found an account with your name at WCG
https://www.worldcommunitygrid.org/forums/wcg/viewmember?member=LHnTX

Have you tried to recover your account login there using the forgot password link?
https://www.worldcommunitygrid.org/login/

I had the same problem and in my case it was the Firewall that prevented a proper installation

The transition might have caused compatibility problems. To resolve this, consider checking BOINC's Compatibility with Windows 11 and try reinstalling the software.

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MY PROFILE

The transition might have caused compatibility problems. To resolve this, consider checking BOINC's Compatibility with Windows 11 and try reinstalling the software.

There is NO KNOW COMPATIBILITY PROBLEMS with Windows 11 & BOINC.

If there was, it would of already been known and reported on the project GitHub development site..