Installation errors

Error 1633

This installation package is not supported by this processor type. Contact your product vendor.

You are running an installer built for a different architecture: a 64-bit package on 32-bit Windows, or an ARM64 package on an Intel machine. Download the build that matches.

What it actually means

MSI packages declare the processor architectures they support, and Windows checks that before doing anything. The mismatch is usually invisible on the download page, where several builds sit next to each other with names differing by a few characters.

How to fix it, in order

Ordered by how often each one is the answer, not by how clever it sounds.

1. 01Check your Windows architecture: Settings, System, About, System type. Anything modern is 64-bit, but 32-bit installs still exist on older hardware.
2. 02Download the matching build. On 64-bit Windows the x64 package is the right one; a 32-bit program will still run, but a 64-bit package will not install on 32-bit Windows.
3. 03On Windows on ARM, take the arm64 build where the publisher offers one. x64 packages often run through emulation, but an x64 MSI can still refuse to install.
4. 04Where we index the program, this page lists every published build with its architecture and hash, so you can pick the right one without guessing from the file name.

Common questions

What causes installation package not supported by this processor type?

Running an installer built for a different architecture, most often a 64-bit MSI on 32-bit Windows or an ARM64 package on an Intel or AMD machine. Download the build matching your system type.

How do I know if my Windows is 32-bit or 64-bit?

Settings, System, About, and read System type. It states the processor and the edition of Windows separately, which matters because a 64-bit processor can be running 32-bit Windows.