This article lists some fixes that you can apply if half of your computer screen is blurry. Most commonly, this issue occurs due to a corrupted display driver or a faulty display. Here, we will discuss the potential causes of this issue and its possible solutions.
Half of my screen is blurry on Windows 11/10
Use the following fixes if half of your computer screen is blurry. Before proceeding, let’s see the possible causes of this issue. If your display driver is corrupted or your monitor refresh rate is incorrectly set, you may encounter this issue. Sometimes, it can be loose, faulty cables, or outdated monitor firmware. In some cases, it can occur due to a minor glitch, or it may also be a failing hardware.
- Preliminary fixes
- Roll back or reinstall the GPU driver
- Change your screen refresh rate
- Update monitor firmware
- Update BIOS and chipset driver
- Hardware fault
All these fixes are explained below in detail.
1] Preliminary fixes
Before proceeding with advanced troubleshooting fixes, try these preliminary fixes:
- Restart the GPU driver by pressing the Win + Ctrl + Shift + B keys.
- If you have an external monitor, check the cable connections. Ensure that the connections are tight.
2] Roll back or reinstall the GPU driver
You can roll back your GPU driver to the previous version. This process fixes display issues most of the time. Follow these steps:
- Open the Device Manager.
- Expand the Display adapters branch.
- Right-click on your GPU driver and select Properties.
- Go to the Driver tab and click on the Roll Back Driver button.
- Follow the on-screen instructions.
If the Roll Back Driver button is greyed out, you can try other ways to restore your GPU driver to the previous version.
If this does not help, you can perform a clean installation of the GPU driver. First, download and install the DDU (Display Driver Uninstaller). Now, download the latest version of the display driver from the official website of your computer manufacturer. Now, completely remove the display driver using DDU and then start its fresh installation.
3] Change your screen refresh rate
The next fix is to change the screen refresh rate. Follow these steps:
- Open Windows 11 Settings.
- Select System > Display > Advanced Display.
- Select a different refresh rate.
4] Update monitor firmware
An outdated monitor firmware is one possible cause of the display issues. If you use an external monitor, this can be the case with you. Update your monitor firmware. Refer to the user manual of your monitor to know the exact process of updating your monitor firmware.
Read: Part of laptop screen flickering
5] Update BIOS and chipset driver
A BIOS update improves hardware compatibility. Check the currently installed BIOS version on your system using the System Information. Now, visit the official website of your computer manufacturer and see if the latest version of BIOS is available. If yes, download and install it. During the BIOS update, provide a continuous power supply to your PC or laptop, even if your laptop is fully charged. Also, update the chipset driver.
6] Hardware fault
If none of these fixes help, your screen may be faulty. Take your system and monitor to a professional computer repair technician to resolve the issue.
That’s it. I hope this helps.
Read: Computer screen looks washed out or Fading monitor screen
How do I fix a blurry background on Windows 11?
Windows 11 shows a blurry background on the login screen. This is by default. However, you can disable the background blur effect on the login screen by tweaking the Registry or using the Group Policy Editor (not available in Windows 11 Home edition). However, if you generally see a blurry background everywhere, check your Display settings and update your Graphics drivers.
Why is my second monitor screen blurry?
The second monitor screen could be blurry due to a variety of reasons, such as outdated monitor firmware, incorrect display scaling and refresh rate, a faulty cable connecting the display to your computer, incorrect monitor settings, corrupted GPU driver, etc.
Read next: Computer Monitor has a yellow tint.
