Missig Scores

Jojo answered a previous question about this issue.
He /She, said that Musescire will not allow scores to be delighted. This may be right, as I have glimpsed some of the scores I thought were lost in my searches....but I can't work out where they are located.
This problem seems to have started when my laptop updated from Windows 10...to Windows 11.
I did find some of the scores on a Widows 10 laptop, but the inner workings of Windows 11 seem to be different to Windows 10.
Can anyone help me find the missing scores? Otherwise I'v wasted 12 Months work!
HELP!