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OS System mismatch – What to do when “OS Mismatched Detected”?

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on December 21st, 2012 | Leave a comment

Have you ever got an “OS System mismatch” error message after booting up the computer? Some users complained that they receive an “OS mismatch detected” in system tray suddenly without a reason while they are working on the computer. Sometimes, the computer won’t work the next time they start up the computer or the next day. It is quite weird and how to permanently get rid of this “OS System mismatch” error message?

OS mismatch detected

To prevent and get rid of the “OS System mismatch” error message, first let’s take a look at the hardware on your computer. You have to make sure that every cable on your system is in firmly and is fully performing without problem; also, check and make sure that all expansion cards just like your graphics or sound card, is securely pushed into its slot. Otherwise, they will prevent you from running the computer correctly.

Then, boot the computer into Safe Mode to troubleshoot and deal with some unknown errors that causing the OS System mismatch” error message. This most of the time works only if you’re running Windows 98 or higher. Restart your computer and immediately begin tapping the F8 key continuously until you get to a “Windows Startup Menu” From this menu, use your keyboard arrows to select the Safe Mode option and then press Enter to go. This is a temporary troubleshooting mode for Windows and most of the time temporarily solves several computer issues. Then, to get rid of the out of range error permanently, just go into went into Control Panel–Display–Settings–Advanced–Adapter—Properties, and then change the parameter to a correct one within the screen area. By default, it should be 640 by 480. 16 colors

If the two above solutions do not work, you can use the Startup Repair option in the Windows Recovery Environment to repair the BCD store. To do this, carefully follow the steps here:

*Insert your Windows installation disc in the disc drive, and then start the computer.
*Press any key to continue when you are prompted.
*Select a language, a time, a currency as prompted, and a keyboard or another input method, and then click Next.
*Then, you should select Repair your computer.
*Select the operating system which you want to repair, and then click Next.
*Click Startup Repair within the System Recovery Options dialog box.
*When the repair finishes, restart your computer to see whether you can start it correctly without an “OS mismatch detected” error message.

To prevent the appearance of the “OS System mismatch” error message, it is highly recommended that you can take some prevention in your daily computer life. The fourth thing you should do is to make sure that the computer is always virus clean. We know that computer viruses – I believe probably all computer users have aware of such terms, are harmful programs which put negative impact on computer just like slow down computer performance, hijack web browser to cause the SSL Connection Error 107 message, generate kinds of computer error codes and so on. In a word, these malicious programs are very dangerous for health of PC. Hence, directly download & run an antivirus program to thoroughly scan & remove all PC threats from the computer.

Lastly, troubleshoot and repair computer registry errors. The registry is the most important component of the Windows-based operating system. It contains files and entries that give instructions for all the software and hardware on the computer to run correctly. If these files are not working properly, the programs and the computer will not be able to run properly, causing the “OS System mismatch” error message and some other PC errors. Simply fix the registry errors help to make the computer run properly all the time without errors.

I think, even though a problem just like the “OS System mismatch” sounds annoying, it is a sign to tell you something goes wrong with the PC. If cannot be repaired timely, it may bring in further damages to the PC. So, just take some correct solutions to deal with the error and optimize the computer from now on. This way, you can run the computer properly all the time.

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