The error: A Mac restarts unexpectedly with a "Your computer restarted because of a problem" message, repeatedly, on a machine that was previously stable.
Environment: Any current Mac, Intel or Apple Silicon.
Apple/Mac Administration
Windows Clients Can't Access a Shared Folder on a Mac
The error: A folder shared from a Mac via File Sharing is visible or accessible from other Macs, but Windows clients either can't see it on the network or get an authentication error trying to connect.
Environment: Any current macOS version with SMB file sharing enabled, mixed Mac/Windows environment.
macOS Software Update Fails to Install, Same Error Every Time
The error: A macOS update repeatedly fails to install, showing the same generic error ("An error occurred installing the selected updates" or similar) regardless of how many times it's retried.
Environment: Any current macOS version.
A Mac Won't Boot Past the Apple Logo
The error: The Mac powers on, shows the Apple logo (or a progress bar), and never proceeds to the login screen or desktop — it just sits there indefinitely.
Environment: Any current Mac, Apple Silicon or Intel.
FileVault Encryption Is Stuck and Not Progressing
The error: FileVault encryption shows as started (or shows a percentage) but doesn't progress further, sometimes for hours, on a Mac that otherwise appears to be working normally.
Environment: Any current macOS version.
Time Machine Says "Backup Disk Is Not Available"
The error: Time Machine reports the backup disk isn't available, despite the destination (a network share, an external drive, or a Time Capsule-style device) appearing to be online and reachable.
Environment: Any current macOS version, network or direct-attached Time Machine destination.
A Mac Won't Enroll in MDM — "Profile Failed to Install"
The error: During Automated Device Enrollment (via Apple Business Manager) or manual enrollment, a Mac gets partway through Setup Assistant or System Settings and throws a generic "Profile Installation Failed" error, with no useful detail on why.
Environment: Any current macOS version, any MDM (Jamf, Kandji, Mosyle, Intune, etc.) integrated with Apple Business Manager or Apple School Manager.
A Mac Won't Enroll in MDM — "Profile Failed to Install"
The error: During Automated Device Enrollment (via Apple Business Manager) or manual enrollment, a Mac gets partway through Setup Assistant or System Settings and throws a generic "Profile Installation Failed" error, with no useful detail on why.
Environment: Any current macOS version, any MDM (Jamf, Kandji, Mosyle, Intune, etc.) integrated with Apple Business Manager or Apple School Manager.