Perhaps Outlook or Todoist has a corrupted file, which is rare, but possible.

Perhaps it wasn’t installed correctly the first time, or Outlook/Todoist has been updated and it has caused a problem. It will stop working if your registry entries are corrupted, but this is very unlikely unless you’ve been fiddling with the registry yourself. If you’ve just deleted Todoist in order to reinstall, then consider the reasons why it stopped working. Here’s a link to the Windows installer troubleshooter, and here’s a link to Apple support for Mac problems. If your default uninstaller isn’t working, then it’s something you need to fix with the publisher of your operating system. Uninstalling is done through the default uninstaller on your device, or through the Microsoft Office platform. However, you don’t need an uninstaller to delete Todoist from Outlook. And such articles offer these complex solutions to justify downloading their uninstaller. Such solutions are often offered so that you can’t understand them. You Do Not Need an UninstallerĪs you scour the Internet for a solution on how to delete Todoist from Outlook, you’ll come across articles that give you very complex solutions where you need to edit registry files, unhide files, and so forth. However, it may also be a sign that your version of Todoist isn’t installed correctly, or even that you downloaded and installed a pirate/phony/malware version (although that isn’t very likely).

Disabling unneeded add-ins can actually speed up Outlook as well.Add-ins may appear missing if you have Microsoft Office and you installed the add-in from the Microsoft Office platform. Note 2: You certainly do not need to have all add-ins enabled for Outlook to work properly. Note 1: See this post if you get the error “The connected state of Office Add-Ins registered in HKEY_LOCAL_MACHINE cannot be changed.”.

For some add-ins you'll need to restart Outlook for changes to take effect.

At the “Manage” dropdown list at the bottom select which type of add-ins you would like to enable/disable.

You can enable/disable add-ins in the following way Outlook 2007

Delete outlook add ins