Microsoft Windows Error Code 0xC0000055: How to Fix It

Q: What does error 0xC0000055 mean?

It means Windows cannot access a device because it is not connected or functioning properly. This often involves external drives, USB devices, or network shares.

Q: Can error 0xC0000055 be fixed without losing data?

Yes, in most cases. The error usually indicates a connection issue, not data corruption. However, if the device has physical damage, data recovery may be needed.

Q: Does error 0xC0000055 affect all devices?

No, it occurs only with the specific device that is unreachable. Other devices should work normally.

Q: Can a virus cause error 0xC0000055?

Rarely. The error is typically hardware or driver-related. Run a full antivirus scan if you suspect malware.

Q: What if the error occurs with a network drive?

Check your network connection, ensure the shared folder is accessible, and try restarting the router and computer.

Abstract

Error code 0xC0000055 means Windows cannot communicate with a connected device. This often happens with external drives, USB devices, or network shares. It can be caused by a loose cable, outdated drivers, or a faulty port.