Fix Windows Defender Error code: 0x8007139f, The group or resource is not in the correct state to perform the requested operation.

Check if Microsoft Windows Defender does not start on Windows 10 issue still occurs. Method 9: Reset PC This is considered to be the last resort when the above mentioned fails to fix the issue.

A Windows Defender bug creates thousands of small files that waste gigabytes of storage space on Windows 10 hard drives.

A Windows Defender bug is reportedly negatively impacting the performance of Intel-based Windows 10 and Windows 11 PCs.

Fix Windows Defender Error code: 0x8050800c, An unexpected problem occurred, Install any available updates, and then try to start the program again.