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Encountering the 'Operating System Not Found' error on a Windows PC or laptop running Windows XP/7/8/10 is a common issue during computer usage. This error has various underlying causes and there are multiple ways to resolve it thoroughly. The following article from TechSolutions.com will guide you on how to fix the 'Operating System Not Found' error on your computer. Please refer to it.
1. Error caused by unrecognized hard drive.
The error caused by an unrecognized hard drive is a primary reason for the 'Operating System Not Found' error on Windows, often occurring when installing Windows or restoring a Windows image. Here's how to troubleshoot it:
Step 1: Restart your computer, during the restart process, press F2 or Del (Depending on your computer) to access the BIOS.
For detailed instructions on how to access BIOS on different computer models, you can refer to this article: https://techguides.com/accessing-bios-boot-menu-shortcut-keys
Step 2: After accessing the BIOS, navigate to the Boot tab, then in the Boot Mode section, switch from UEFI to Legacy as shown below.
Additionally, if there is an option for External Device Boot, set it to Enabled.
Step 3: After making the changes, press the F10 key to save and exit BIOS and boot into Windows. At this point, you will know if the error still persists.
2. Error caused by Windows
A faulty Windows installation could also be the reason for the 'Operating System Not Found' error. It's possible that your computer has been infected by a virus or you've mistakenly installed malicious software that caused Windows to malfunction.
To resolve this, the only solution is to reinstall Windows. You can either take your computer to a store for Windows reinstallation or do it yourself if you prefer.
You can refer to the guide on how to install Windows 10 here: https://Mytour/huong-dan-cach-cai-windows-10-bang-usb-tung-buoc-mot/
3. Error caused by loose or faulty hard drive
- In case of a loose hard drive connection, you can open the computer case and check if the hard drive connector is loose or dirty. If necessary, you can replace the SATA cable if it's a desktop computer. After re-plugging or replacing the cable, if the hard drive is still not recognized, it may be faulty.
- If you suspect that the hard drive is faulty, you can remove the hard drive and connect it to another computer to confirm whether it's actually damaged. If the hard drive is indeed faulty, the only solution is to replace it with a new one.
Here are some methods to fix the Operating System Not Found error on Windows. Hope you find the article helpful. Wish you success!
