Quick answer
First check whether the recommended resolution is selected in `Settings > System > Display` and whether scaling is at the recommended value, usually 100 or 125 percent. If the image is still poor, update the graphics card driver and check the cable and monitor input. Most problems are solved within Windows itself, without reinstalling the system.
How to recognize the problem
- Text and icons are blurry or stretched
- Everything on screen is too big or too small
- Black bars on the sides or image does not fill the screen
- Resolution reverts to old after restart
- Images and video look distorted
Most common causes
Wrong resolution
Windows has selected a resolution that is not native for the monitor, so the image is stretched or scaled.
Wrong scaling
The option for size of text, apps and other items is set to a value that does not match the screen, especially on laptops with small screens.
Poor or outdated graphics driver
Windows uses a generic driver that does not support all resolutions, so there are no native options or settings are not remembered.
Cable or monitor input
An older VGA cable or wrong input (for example HDMI instead of DisplayPort) limits resolution and refresh rate.
Monitor settings
Auto adjustment or wrong display mode on the monitor can cause a stretched image even with correct Windows settings.
Step-by-step fix
- 1
Open display settings
Right-click on an empty area of the desktop and select
Display settings. You get the same screen viaSettings > System > Display. If you have multiple monitors, select the one you are adjusting at the top. - 2
Set the recommended resolution
Under
Display resolution, select the value marked(Recommended). That is the monitor's native resolution and the only one that gives a completely sharp image. Confirm in the dialog that appears within 15 seconds, otherwise Windows reverts to the previous setting. - 3
Adjust scaling
Under
Scale, try 100 percent, and on laptops with a Full HD screen 125 percent. If everything is too big, decrease the value; if text is tiny, increase it. Sign out and sign back in if some apps do not follow the new scaling. - 4
Check refresh rate
Open
Advanced displayand in the refresh rate field select the highest value the monitor supports, for example 60 Hz or 144 Hz. A low value does not affect sharpness, but the image may appear to stutter. - 5
Update the graphics driver
Open
Device Manager, expandDisplay adapters, right-click the graphics card and selectUpdate driver. If Windows finds nothing, download the driver from the card or laptop manufacturer's website and install it, then restart the computer. - 6
Check cable and input
Turn off the computer and monitor, reconnect the cable and turn them on, then try another input on the monitor if available. For resolutions above Full HD use a DisplayPort or newer generation HDMI cable, and avoid VGA. On the monitor press the auto adjustment button if it has one.
- 7
Restore monitor default settings
If the previous steps did not help, in the monitor menu select
ResetorFactory resetand check that the correct input is selected. This removes manual adjustments that can stretch the image, but also erases your monitor settings. - 8
Check if settings are remembered
Restart the computer and open
Settings > System > Displayagain. If the resolution reverts to the old one, the problem is most likely in the driver or in graphics manufacturer tools that impose their own settings.
If nothing helped
If the image is blurry after all steps, check whether the text clarity option is enabled: in Start search type ClearType and go through the tuning wizard. For older apps that look blurry at scaling above 100 percent, right-click the shortcut, open Properties > Compatibility and enable Change high DPI settings, then mark that the app handles scaling itself. If you use two monitors of different resolutions, set each to its own recommended value. As a last resort, in Device Manager select Uninstall device for the graphics card and restart the computer so Windows reinstalls the driver. The display may briefly turn off and the resolution will be low until the driver returns, so create a system restore point beforehand.
How to prevent it
- Always use the resolution marked Recommended
- Install the graphics driver from the manufacturer's website, not only via Windows Update
- For monitors above Full HD use DisplayPort or a newer HDMI cable
- Do not change per-app scaling unless necessary
When to call a professional
Contact IT support if the resolution reverts to the old one even after reinstalling the driver, if the image is distorted in the BIOS as well, or if you suspect a fault with the graphics card, cable or the monitor itself.
IT infrastructure maintenance · Servers, networks, backup, security and helpdeskFAQ
Why is my image blurry when the resolution is correct?
Most often it is scaling above 100 percent or an app that does not support that mode. Check `Scale` in display settings and if needed disable the specific DPI setting for that app.
What is the best resolution for my monitor?
Always the native one, that is the one marked Recommended in Windows. Every other value is scaled and therefore looks blurry or stretched, regardless of screen size.
Can I change the resolution if the screen is completely black?
If the screen is completely black after changing resolution, wait 15 seconds for Windows to revert to the previous setting. If that does not happen, boot into safe mode and there restore the resolution or uninstall the graphics driver.