Recently, Visual Studio 2019 is performing very slowly in auto-completion, showing suggestions, detecting errors, expanding and collapsing. What could be the reason for this? and how can I fix this?
The slow-down was fixed by starting Visual Studio in
This means that some installed extension has become troublesome and needs
to be uninstalled. You will need to find it by trial and error.
To uninstall an extension that was installed by a standard
Run menu Extensions > Manage Extensions, click on "Installed" and then on the extension. You will see two buttons: "Disable" and "Uninstall". Try "Disable" first and restart Visual Studio. If the problem is fixed, then use "Uninstall" on the bad extension. For good extensions, the "Disable" button will be replaced by "Enable" and they can be returned.
For extensions that use other installers like
.msi, they can typically
be uninstalled from Control Panel > Programs and Features.
They can only be uninstalled, not disabled.