![]() To check the BIOS boot order, take the below steps: If a wrong hard drive is set as the first boot disk, the “Error loading operating system” will absolutely appear in Windows 10/8/7. Check the boot orderįirst of all, we had better ensure the boot order is correct especially when there are several hard drives on your computer. NOTE: all the following methods operations are carried out in Windows 10 as an example. No matter what makes your computer pop out the boot error message, below are several methods through which you can fix this annoying issue with ease. 5 Solutions to “Error loading operating system” in Windows 10/8/7 ▸Some bad sectors on the system hard drive. ▸Multiple hard drives have been connected to your computer, then the computer cannot detect which one is the primary hard drive containing the operating system & system applications. ▸The system BIOS does not support the hard drive. ▸The operating system’s files and folders are damaged. ▸Computer hard disk MBR information is not right. ▸The hard drive’s system partition is damaged. Besides the physical damage of hard drive, the following causes can also make your Windows not to load successfully: ![]() If something goes wrong during the process, the operating system won’t be launched successfully. What causes "Error Loading Operating System"?Īs we all know, when a computer powers on and starts up, its BIOS and CMOS will check the system setup, hard drives, and then boot the operating system. To find out the most suitable fix, it is necessary to learn the possible culprits. Most computer users might have met this irritating problem when starting Windows 7, Windows 8/8.1, and Windows 10. What do you know about such problem? How can I fix this issue in Windows 10? Thanks for any suggestion!” I am worried about whether there is something wrong with my computer. Manuals are posted on your model support page.“Hello, experts there! Recently, whenever I try to boot my Windows 10 computer, it says "Error loading operating system" on a black screen after the computer is powered on. ![]() IMPORTANT: For model specific information about using the VAIO Recovery Center software, consult the operating instructions supplied with the product. ![]() Restore the entire C: drive to its original, factory-installed condition using the Restore C: Drive option in the VAIO Recovery Center.When performing a full system recovery, all software applications, configurations, and data added to the restored drive will be erased. Reset the computer BIOS to the default settings.Turn off the computer, remove the media from all drives (optical, USB, floppy, etc.) and restart the computer.Press and hold the Power Switch for 5 seconds to turn the computer off, and then restart the computer.NOTE: Because each of these steps represents a possible solution to this issue, check the computer status after completing each step. You might also see this error if the computer is trying to boot from a non-bootable source, such as a hard drive, flash drive, optical drive or floppy drive that is not properly configured to be used as a boot device.įollow these steps when the error Bootmgr is missing is displayed. The Bootmgr is missing error can be caused by corrupt files, corrupt hard drive sectors or hard drive failure, operating system upgrade issues, BIOS settings, or by damaged or loose hard drive cables. ![]()
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