0xc0000225
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Microsoft · Windows
Required boot device or system file is inaccessible during startup.
Quick Answer
Error code 0xC0000225 on your Microsoft Windows means: Required boot device or system file is inaccessible during startup.. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Boot to WinRE and run Startup Repair.
2
Check BIOS/UEFI boot order and disk detection.
3
Run bootrec /fixmbr, /fixboot, and /rebuildbcd as applicable.
4
Run disk diagnostics/chkdsk.
5
Restore image backup if boot structure cannot be repaired.
Pro Tip
This issue typically requires professional diagnosis. Attempting this fix without proper training could cause further problems.
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