Are you using official Sumatra build? #
Did you download Sumatra from official Sumatra website?
If not, we can’t help you because we didn’t create the software you’re using.
Uninstalling Sumatra #
There are 2 versions of Sumatra: an installer and a portable version (zipped executable).
Uninstalling portable version #
If you’re using zipped executable, the only thing you need to do is to delete SumatraPDF.exe.
Uninstalling the installer version #
If you installed SumatraPDF by running official installer, you uninstall it like every other application.
On Windows 10 / 11:
- start Settings app (https://www.digitalcitizen.life/introducing-windows-10-ways-open-settings)
- Select
Apps - find
SumatraPDFon the list, click it and pressUninstallbutton:

What if the above doesn’t help? #
What if you still have questions? You can use Discussions to ask for additional help.
However, in order for someone to help you, you need to provide the following information:
- Sumatra PDF version you’re using
- your OS (Windows) version
- did you download an installer or zipped executable?
- where did you download the Sumatra from (the url of the webpage you used to download Sumatra)?
- is there SumatraPDF directory in your program files directory (usually “c:\Program Files” or “c:\Program Files (x86)” on 64-bit systems)?
- what evidence there is that Sumatra is installed? Be precise and specific. Don’t just say “there’s a link to it”, tell us where that link is, what is the name of the link etc.
To emphasize: if you don’t provide this information, we cannot help you.