To fix An operating system wasn’t found error on Windows computers, first check if the Disk Type is GPT or MBR, and then follow these steps.

Fix 0xc0000225, The application or operating system couldn't be loaded because a required file is missing or contain errors on Windows.

A bad system config error on a Windows machine can stop you dead in your tracks. Here are some things to try to troubleshoot and fix the pesky issue.

When I do that I get "Error loading operating system" again. WTF? So, anyone know how I can fix this because right now I have a computer whose only function is BIOS ...