If your computer powers on but Windows never reaches the desktop, the problem can range from a damaged update or corrupted system files to a failing storage drive or other hardware issue. The symptoms you see during startup can help narrow down where the problem is.
This article is for a computer that receives power but Windows will not load normally. If the computer powers on and immediately shuts back off, see Computer Turns On Then Shuts Off. If the computer appears to stay on but the monitor remains blank, see PC Not Detecting Monitor.
Windows begins loading but never reaches the sign-in screen or desktop.
Tell me what appears on the screen and whether important files are not backed up. I can help determine whether the priority should be Windows repair, hardware diagnosis, or protecting the data first.
The computer repeatedly shows “Preparing Automatic Repair,” “Diagnosing your PC,” or recovery screens without successfully starting.
The computer begins loading Windows, restarts, and then repeats the same cycle.
A Windows stop error appears before you can reach the desktop, sometimes followed by another restart.
You may see a message such as “No Boot Device,” “Operating System Not Found,” or another message indicating Windows cannot be located.
The computer gets past its initial power-on screen but never reaches a usable Windows desktop.
The goal is to determine why Windows stopped starting before making changes that could put your files at unnecessary risk.
Windows can fail to start even when your documents, pictures, and other files are still present on the storage drive. Depending on what caused the startup failure, it may be possible to repair Windows without affecting your personal files.
If the Windows installation cannot be repaired, the data may still be accessible separately from the operating system.
If the files on the computer are important and there are signs the drive may be failing, protecting the data should take priority over repeatedly trying to force Windows to boot.
JMG Computers, LLC provides logical data recovery when the storage device is still functioning well enough to access or safely image. Physical drive failures require a specialized recovery laboratory.
Repeated repair attempts against a physically failing drive can make later data recovery more difficult. If the data matters, it is better to diagnose the storage condition first.
Tell me what appears on the screen, whether you are seeing an error message, and whether there are important files on the computer that are not backed up. I can help determine the safest next step.