A Blue Screen of Death (BSOD) error, also known as a STOP error, usually occurs when the operating system faces with some serious errors and have to shut down immediately to prevent more damages to the computer. That is why you get some unexpected BSOD STOP error messages just like STOP 0X0000007F or Stop c000021a Fatal System Error in the middle of doing something important on the computer. In my opinion, it is common to get a blue screen for only one or two times if you have run the computer for a very longer time; however, if it happens frequently, you should take immediate actions to stop BSOD error and maintain computer performance effectively.
When facing with BSOD error, the first thing you should do is to restart your computer into safe mode as this will load up your PC without any of the software or settings. Hence, you can more effectively test whether the problem is caused with the software or not… and essentially if the computer runs properly without crash, it is easy to decide that the problem is caused by software problem. You should check and uninstall your recently installed programs to see whether it solves the problem. However, if the BSOD Stop error occurs in safe mode, it generally means a hardware issue, and you should run Chkdsk program to check and fix all of your hard disk errors, and update all your outdated drivers to the latest ones, or directly bring your computer to a repair store.
If the error persists after a fix within Safe Mode, you should try running an adware, spyware, and virus scanner. You can also obtain this software for free in the internet. The scanning here can take a while longer because it scans your hard drive thoroughly. Some viruses or malicious programs are able to attack and remove any files from the PC, causing the computer unable to access them correctly and then generate a blue screen error or some other errors just like nv4_disp.dll error.
Sometimes, the blue screen error may happen when there is something wrong with your BIOS settings. To solve it, you need to update BIOS. You can contact hardware vendor for the latest version. But it is recommended that you temporarily disable BIOS memory options, such as shadowing or caching while updating BIOS.
If blue screen STOP error code remains after updating Windows BIOS, there must be something wrong with the outdated drivers on your computer. At this time, it is recommended that you should download and run a driver checker program to thoroughly scan your computer and update all outdated drivers on your computer, especially the video adapter drivers.
Last but not least, you should check and fix registry errors. Registry plays a very important role in the proper operation of the computer and all programs installed. When something happens to registry entries, you will begin to experience performance reductions and eventually blue screen errors, computer crashes. Just like scanning your computer with antivirus software, a registry repair tool can help you prevent and fix these types of serious problems.
Still looking a war to stop BSOD error effectively? It is highly recommended that you can consider running a professional registry cleaner to do the job for you, which automatically scans & fix all errors inside the registry; making the computer to run smoothly and without any other computer errors.
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