I already have 125% on my 1080p 15.6-inch laptop display.

> Windows can't handle this, and will render blurry text in system dialogs.

Fix:

    reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers" /v "C:\Windows\System32\mmc.exe" /f /t REG_SZ /d "~ HIGHDPIAWARE"

Nearly all system dialogues use mmc.exe, so this should fix your issue.