Microsoft’s Patch Tuesday release for April is a whopper

• Install, uninstall, and repair MSI packages to verify Windows Installer functions correctly.
• Connect and disconnect your cloud sync provider (e.g. OneDrive) multiple times and confirm sync functions after restarts.
• Enroll a device in Intune or your MDM solution, verify compliance status, and trigger a policy sync.

Common Log File System and storage

The Common Log File System driver (clfs.sys) — subject of March’s major hardening change — picks up a follow-up patch. Storage Spaces (spaceport.sys) and app isolation file system drivers (bfs.sys, wcifs.sys) also receive updates this cycle.

• Run Windows Update install and rollback cycles, then power-cycle the machine multiple times to confirm the system boots normally each time.
• Install and uninstall a set of representative applications through multiple cycles and confirm each completes without error.
• Perform a backup using your normal solution, restore from it, and verify data integrity.
• If using…