Guide: Best Tips to Stop Monitor Flickering on Windows OS

There is nothing more annoying than setting up a new computer, installing a new graphics card, or using a new monitor just to make it flicker there. Computer graphics must be crystal clear and flicker too fast for the eye to detect. If you see your monitor flickering, here are a few ways to stop it. If you ever see archive footage from Wall Street or anywhere where CRT screens were used, you really know what screen flicker is all about. Now that we are used to crystal-clear LCD or LED screens, every small glitch in the display is immediately noticeable and immediately annoying. Fortunately, there are a few ways you can fix the problem.

What causes screen flickering?

A screen flicker is characterized by a very brief fade to black on a screen like a flash. The display may go dark for a fraction of a second and then return to normal. This can be on a regular basis, every few seconds, or intermittently, every now and then. There are a few things that can cause a screen to flicker. They include a faulty screen, faulty HDMI cable, old or faulty graphics driver, incompatible program or application, Windows error, or even a slightly overheated graphics card. Most of the time it’s something simple and with a few simple tests you can quickly identify what’s causing the flicker.

Stop your monitor flickering in Windows

The first step is to detect if it is your computer hardware, operating system or a program that the monitor is flickering. The easiest way to do this is to open up a core Windows app like Control Panel or Task Manager and see if you flicker there. If Task Manager does not flicker, the problem is caused by another program. If Task Manager is still flickering, it is probably a hardware or graphics driver. If it just started, restart your computer to see if it still flickers. If not, everything is fine. If it does then move on to the next troubleshooting step.

Check connections

Your first check after a reboot is to check your monitor cable (s) and power cable for the monitor. Make sure they are properly seated and screwed into the card and monitor. If the cable is already properly seated, swap it for another one and test again. The power cord does not have mounting screws, so make sure it is secure and does not move.

Update or change the graphics driver

If you are using an older graphics driver, please update to the latest version. If you have just updated your driver, try rolling back to a previous version. You should use DDU Uninstaller to completely uninstall the old driver first to eliminate any possibility of it flickering the monitor. DDU Uninstaller is a small app that can completely remove all remnants of an older driver. It boots your computer in safe mode, removes all driver files and boots back up in normal mode so you can install a new one.

Use Windows Safe Mode

Windows Safe Mode is a very useful troubleshooting environment as it only loads the Windows core and very little else. Once you’ve completed all of the above, boot into Safe Mode and see if your screen flickers there. If not, it is a problem with the driver or program. If it does then it’s probably a problem with the physical settings or monitor setup. This will boot you into safe mode.

Check your apps

Although unusual now, some apps have caused screen flickering before. From previous experience I know that Norton AV has interfered with screens before. If you installed a program or app just before the screen started flickering, disable or uninstall it and test again. If you updated Windows just before things changed, uninstall that update and retest. Software is more often the cause than hardware.

Check your refresh rate

The monitor refresh rate is a measure of how quickly each pixel on your monitor is updated or refreshed. Monitors have native refresh rates at which it works best and your graphics driver should use that by default. If that has changed, the monitor may flicker. If you have a 60Hz monitor, the refresh rate listed should be 59 or 60Hz. If you have 100Hz or 120Hz monitors, the refresh rate should be very close to that, if not the same.

Check your graphics card

It’s rare for a physical problem with a graphics card to cause flickering, but not impossible. I’ve seen firsthand how a slightly overheated card would flicker when it turned itself off to prevent overheating and then turned back on when it cooled down. Turn off your PC and open it up. Make sure the card is properly seated and locked. Check that it is not covered with dust and clean it carefully if it is. Check that the cooler outlet vents are also free of dust and dirt and that heat can escape freely through the back of the card. If you are using water cooling or third party cooling, check the temperatures to make sure the card is not overheating.

Test and check the monitor

Monitors are now quite reliable but it’s possible that it’s a hardware glitch causing the problem. If you have the luxury of a spare monitor, swap it out and retest. If not, check all monitor settings and reset to default settings if they look okay. If you’ve already swapped the cable, make sure the monitor is yours final task. If you laptop, you can connect an external monitor to it and use it instead of the laptop screen to troubleshoot. Connect an external monitor via HDMI or VGA and tell Windows to use the external monitor when prompted. Troubleshooting a flickering monitor is a process of elimination. It’s easier to start with the most likely culprits and move on to the more involved options. If you have all tips here you should have identified what causes your monitor to flicker and stop it.

Best Tips to Stop Monitor Flickering on Windows OS: benefits


Final note

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