My AutoHotkey scripts
Microsoft has a set of key bindings that are preconfigured and that may open unrelated Office windows when using ALT+` (tilde). AHK reference
You can fix this issue by running this from an elevated command line window -
REG ADD HKCU\Software\Classes\ms-officeapp\Shell\Open\Command /t REG_SZ /d rundll32
And to reverse it, run the following from an elevated command line window -
REG DELETE HKCU\Software\Classes\ms-officeapp\Shell