Critical
Operating Systems
✓ Solution Verified by Community (0+ upvotes)
How to fix error 0x0000002e in Windows 11
Bug Check 0x0000002E: DATA_BUS_ERROR — A data bus error was detected.
Fix based on community reports and expert analysis. Last verified: 2026-08-12
· How we verify fixes
| Error Code | 0x0000002e |
|---|---|
| Affected System | Windows 11 (Microsoft) |
| Difficulty | Critical |
| Estimated Time | 90 min |
| Requires Admin Rights | ⚠️ Yes |
| Requires Reboot | 🔄 Yes |
Solution Steps
- 1 Press Windows key + R, type 'mdsched.exe' and press Enter. Choose 'Restart now and check for problems'. Windows will run a memory test after reboot. This can take 20-30 minutes. If errors are found, your RAM is faulty and needs replacement.
- 2 Open Command Prompt as administrator (Win+R, type 'cmd', press Ctrl+Shift+Enter). Run 'chkdsk C: /f /r' and press Enter. You'll be prompted to schedule a disk check on restart. Restart and let it run. This checks for bad sectors and file system errors on your hard drive.
- 3 If the error persists, update your drivers. Press Windows key + X and select 'Device Manager'. Expand 'Display adapters', 'Storage controllers', and 'System devices'. Right-click each device and select 'Update driver'. Choose 'Search automatically'. If no updates, visit the manufacturer's website.
- 4 Check if your system is overclocked. If so, reset your BIOS/UEFI settings to default. Restart your PC and press the key to enter BIOS (usually Del, F2, or F12). Look for 'Load Optimized Defaults' or 'Reset to Default' and save. Overclocking can cause data bus errors.
- 5 If the problem continues, reseat your RAM and expansion cards. Power off your PC, unplug it, and open the case. Remove and reinsert RAM sticks and any PCIe cards (like graphics cards). Ensure they click in firmly. This fixes poor connections.
- 6 If all else fails, use System Restore: press Windows key + R, type 'rstrui' and follow the wizard to revert to a previous state.
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