After upgrade to Windows 10, many users have faced a problem of blur and fuzziness of fonts in the system and some applications that prevent normal use of a computer. As a rule, the problem appears on the devices with a high resolution exceeding 200 DPI. The matter is that starting from Windows 8.1, Microsoft changed the DPI scaling scheme it used before. Problems can appear if the DPI value exceeds 120 or if applications do not have a DPI-Aware flag. The same scaling scheme is also used in Windows 10.
If you are not satisfied with the scaled fonts display you can restore a “classical” scaling scheme for a certain application and for the whole system.
How to Eliminate the Fonts Blur in a Certain Application
If a problem occurs with blurred fonts exists in one specific application, for example, in Mozilla Firefox browser, you can try to solve it individually for this application.
- Open the properties of the application executable file (in our example, firefox.exe)
- Go to Compatibility tab
- Check Disable display scaling on high DPI settings
- Save the changes and run the application.
Make sure that the problem has been eliminated. If not, go to the next step – reducing the system DPI settings.
Reducing the System DPI Settings in Windows 10
On many devices, the problems connected with blur and low fonts legibility appear in the system at the scaling equal to 125% or higher. In this case, you can try to reduce the scaling settings (DPI) to 100%.
- Open the Settings section in the modern Control Panel
- After that, set the “Change the size of text, apps and other items” slider to the extreme left position (it has to be 100%) in the Display section.
- Log out and log in to the system again.
If it did not help, try the next solution.
Restore the Previous Scaling Method in Windows 10
In Windows 10 and Windows 8.1, a new fonts scaling method is used. It is possible to restore the scaling method previously used in Windows 8 RTM and Windows 7. In most cases, it can help to solve the problem connected with blur and improper display of fonts.
- Create a file revert_classic_dpi.bat containing the following text:
REG ADD "HKCU\Control Panel\Desktop" /v DpiScalingVer /t REG_DWORD /d 0x00001018 /f
REG ADD "HKCU\Control Panel\Desktop" /v Win8DpiScaling /t REG_DWORD /d 0x00000001 /f
REG ADD "HKCU\Control Panel\Desktop" /v LogPixels /t REG_DWORD /d 0x00000078 /f
- Run the revert_classic_dpi.bat file with the Administrator privileges.
- Restart Windows 10
- Check if the problem connected with fonts display has been solved