| Tool/Option | Type | Purpose |
|---|---|---|
| Advanced Startup (Shift+Restart) | Boot Option | Access recovery tools and safe mode |
| System Restore | GUI | Roll back to previous restore point |
| Startup Repair | GUI | Fix boot issues automatically |
| sfc /scannow | CLI | Scan and repair system files |
| chkdsk /f /r | CLI | Check and fix disk errors |
| Tool/Option | Type | Purpose |
|---|---|---|
| Recovery Mode (⌘+R) | Boot Option | Access reinstall, restore, and disk tools |
| Disk Utility > First Aid | GUI | Check and repair disk errors |
| Time Machine | GUI | Restore from backup |
| sudo fsck -fy | CLI | Force file system check and repair |
| Safe Mode | Boot Option | Loads minimal drivers and runs diagnostics |
| Tool/Option | Type | Purpose |
|---|---|---|
| GRUB Recovery | Boot Option | Access recovery kernel or rescue shell |
| Live USB | Boot Option | Boot into live environment for rescue |
| fsck /dev/sdX | CLI | Check and repair file system |
| mount -o remount,rw / | CLI | Remount root partition as writable |
| TestDisk | CLI | Recover lost partitions and files |