Have others experienced a problem on M1 with "2022-04 Cumulative Update for Windows 11 for arm64-based Systems (KB5012643)"? (Parallels Pro 17.1.2) I updated yesterday and today Windows would not start at all. Restored using recent back-up, all working, tried to update again. Would not restart after installation. Restored to the working back-up and did minor updates to show "You're up to date" avoiding the optional extra update. All seems OK now. The Intel iMac seems to have taken KB5012643 without problems.