See the earlier replies.
.
If you "upgraded" <sarcasm> to Win 11 less than 10 days ago, there is a built in process to return to Win10
If it has been more than 10 days, you will have to do a clean install of Win10 and all of your applications, AND PERSONAL DATA.
. https://www.zdnet.com/article/windows-11-give-yourself-more-time-to-roll-back-the-upgrade/ .
HINT: before starting either "undo" process, at the very least you really should backup your personal data files.
Better is to do a full image copy backup of Current Win11 setup. Just in case there are problems restoring Win10 ... YNK (You never know ...)