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.

Windows 7 may be Microsoft's best desktop OS to date, but it's not immune to problems and corruption. We show you how to repair a misbehaving Windows 7 installation using the In-Place Upgrade option.

While many users swear by Windows 7's reliability, some common problems remain even after the release of multiple service packs. Here's how to fix them.

If your computer begins displaying the message, "DISK BOOT FAILURE INSERT SYSTEM DISK AND PRESS ENTER" or "No system disk," it means that the PC cannot start because it cannot find the operating ...

If you see Error 1962, No operating system found, Press any key to repeat boot sequence when you start your Lenovo computer, see this post.

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.