Critical
Operating Systems
✓ Solution Verified by Community (30+ upvotes)
How to fix error irql-not-less-or-equal in macOS Ventura (13)
Driver conflict or faulty memory. Often caused by outdated drivers accessing invalid memory addresses.
Fix based on community reports and expert analysis. Last verified: 2026-08-12
· How we verify fixes
| Error Code | irql-not-less-or-equal |
|---|---|
| Affected System | macOS Ventura (13) (Apple) |
| Difficulty | Critical |
| Estimated Time | 20 min |
| Requires Admin Rights | ⚠️ Yes |
| Requires Reboot | 🔄 Yes |
Solution Steps
- 1 Run System File Checker: press Windows key + X → Terminal (Admin) → type 'sfc /scannow' → Enter. This scans and repairs all protected macOS Ventura (13) system files.
- 2 Run DISM: in the same admin terminal, type 'DISM /Online /Cleanup-Image /RestoreHealth' → Enter. This repairs the component store that SFC uses to fix files.
- 3 Check for macOS Ventura (13) updates: Settings → Windows Update → Check for updates. Install ALL pending updates.
- 4 Scan for malware: Windows Security → Virus & threat protection → Scan options → Full scan → Scan now.
- 5 Check disk for errors: open admin terminal, type 'chkdsk C: /f /r' → Enter → Y → restart. Disk errors corrupt system files.
- 6 Run Windows Memory Diagnostic: Win+R → 'mdsched.exe' → Restart now. Faulty RAM causes random system crashes.
- 7 Perform a Clean Boot: Win+R → 'msconfig' → Services → Hide Microsoft services → Disable all → Startup → Open Task Manager → Disable all → Restart. This identifies conflicting third-party software.
- 8 Update all drivers: GPU (NVIDIA/AMD/Intel website), chipset, network, audio, storage. Manufacturer websites, not Windows Update.
🔍 Didn't work? Enter your GPU and CPU for hardware-specific advice:
🔧 Still having issues?
Describe your exact problem to Error Buddy and get a personalized fix in seconds.
🛠️ Try Error Buddy — It's Free