Lỗi operating system not found trên win xp năm 2024
Get the fix for “Operating System not found” boot error for Windows XP, Vista, 7, 8, 8.1 or Windows 10. Show This error is also very common for Sony VIO laptops, including T-Series ultra books and S-Series. About “Operating System not found“The following information on this error has been compiled by NeoSmart Technologies, based on the information gathered and reported by our global network of engineers, developers, and technicians or partner organizations. Description and SymptomsThe error messages, alerts, warnings, and symptoms below are tied to this error. Symptom 1: “Operating System not found” error screen on startupWhen a PC is booting, the BIOS tries to find a operating system on a hard drive to boot from. However, if it is unable to find one, then an “Operating system not found” error is displayed. It may be caused by an error in BIOS configuration, a faulty hard drive, or a damaged Master Boot Record. Operating system not found Another possible error message is “Missing operating system“. This error is also very common on Sony Vaio Laptops. Causes of this ErrorThis error has been known to occur as a result of one of the following causes: Cause 1: Bad BIOS configurationSince this error occurs when BIOS is unable to find the operating system, checking the BIOS settings first is often a good solution. The BIOS configuration can become incorrect because of power outages, hardware errors or errors made when configuring the BIOS manually. Cause 2: BCD is damagedSimilar to the errors outlined in the BCD is missing and BCD is corrupt articles, this error can also appear when BCD becomes damaged. Cause 3: Faulty data cablesIf the BIOS is unable to detect the hard drive, the faulty data cables are often to blame. Try to unplug, and then plug them back, or even replace them altogether and see whether the problem persists. Fixing “Operating system not found” on WindowsWindows Setup CD/DVD Required! Some of the solutions below require the use of the Microsoft Windows setup CD or DVD. If your PC did not come with a Windows installation disc or if you no longer have your Windows setup media, you can use Easy Recovery Essentials for Windows instead. EasyRE will automatically find and fix many problems, and can also be used to solve this problem with the directions below. Fix1: Rebuild BCD via Easy Recovery EssentialsEasy Recovery Essentials’ one-click automated system repair corrects issues caused by corrupt BCD by recreating it from scratch on the active bootable partition. This is done automatically as part of the automated repair process, and requires no manual action or user intervention. Easy Recovery Essentials can fix many errors such as this automatically using its built-in Automated Repair option. EasyRE is currently available for Windows XP, Vista, 7, 8, Windows 10, and Windows 11 and can be downloaded and created on any PC.
You can download Easy Recovery Essentials from here. Fix2: Change or reset the BIOS configurationSince this error often occurs when BIOS is unable to find the hard drive, checking BIOS settings might be a good solution. To check the BIOS settings, follow these steps:
Here are the screenshot examples of BIOS’ main screen, with a hard drive and a CD-ROM that were properly detected, and a boot order screen that has a hard drive in the first position. BIOS main settings screen BIOS boot order screen If the hard drive is not detected properly, consider replacing the data cables, or resetting the BIOS settings to default values. Here are the steps to reset BIOS settings:
BIOS reset defaults screen Fix3: Run Automatic RepairThe Windows Automatic Repair may recover certain boot process related errors in some cases. Here are the steps to access the Automatic Repair from an install disc:
Here is an example of what the PC’s startup repair should look like once the BOOTMGR file is properly restored: Corrupt bootmgr fixed by Startup Repair Fix4: Rebuild the BCD using bootrec.exeJust as with the BOOTMGR is Missing error, rebuilding your computer’s BCD can fix boot loading issues. Here are the steps to rebuild the BCD:
Here is an example screenshot of what the PC’s console output should look like once Bootrec is done rebuilding the BCD. Bootrec utility results screen Fix5: Reset BIOS settings on Sony VAIO LaptopThe eSupport section of Sony.com suggests the following solutions if your VAIO laptop is showing this error:
Here are the steps to reset VAIO’s BIOS settings if you have Windows XP, Vista, 8 or 8.1:
Here are the steps to reset VAIO’s BIOS settings if you have Windows 7:
In BIOS, make use of the arrow keys to navigate through the screens and options, Enter key to select an option and the ESC key to exit the active window. More InformationLinked Entries
Support LinksEasy Recovery Essentials for Windows – our repair and recovery disk. It’s an easy-to-use and automated diagnostics disk. It’s available for Windows 8, Windows 7 and Windows Vista. It’s also available for Windows XP and Windows Server. |