How to fix blurry apps after display scaling changes in Windows 11
Some desktop apps may look blurry after the primary display scale changes, including when a display is connected or disconnected or when connecting remotely from a device with a different scale. Per-process system DPI can make some apps sharp after restarting them without signing out; without it, some apps may require signing out and back in.
Steps
- Press
Win + R, entergpedit.msc, and open the Local Group Policy Editor. - Go to
Computer Configuration › Administrative Templates › System › Displayand openConfigure Per-Process System DPI settings. - Set it to
Enabled, enable per-process system DPI for all applications in the options, and apply. - Close the affected app completely, restart it, and check it on the primary display.
If the policy is Disabled or Not Configured, this policy does not apply per-process system DPI. If the editor is unavailable, save your work and sign out and back in.
Exceptions and limits
Choose a default for all apps and enable or exclude individual apps using the executable filename and extension or its full path. Separate multiple entries with semicolons. The feature helps some desktop apps on the primary display or another display with the same scale; apps on differently scaled secondary displays and some older apps may remain blurry. Disable it for an app or restore the policy if the app behaves unexpectedly.
Registry and reversal
The policy combines a default with per-app exceptions, so changing a single registry value may not reproduce the configuration. See the registry value page. Restore the previous policy setting; if it was not previously configured, select Not Configured, apply, and restart the app.
Configure Per-Process System DPI settings
This guide uses the Windows 11 version 26H2 policy templates.