MDTools Add-in still appears in SolidWorks Add-ins List after Uninstall

Issue

After uninstalling the MDTools 900 series, the MDTools add-in entry still remains visible in the SolidWorks Add-ins list.

Cause

This issue is commonly observed when a Service Pack (SP) or Hotfix (HF) is installed along with MDTools.
In such cases, uninstalling MDTools <version> may not remove the uninstalled version add-in registration completely.

Resolution

Scenario 1: MDTools is already uninstalled

If you have already removed MDTools but the add-in entry still appears:

Install the MDTools <version> Base Setup again
Uninstall the MDTools <version> Base Setup
Open SolidWorks → Tools → Add-ins and verify the entry is removed

This method removes the leftover add-in entry properly.

Scenario 2: MDTools <version> is still installed

If MDTools <version> is still installed and you want to uninstall it cleanly:

Uninstall the Service Pack (SP) and Hotfix (HF) first
Then uninstall MDTools <version>
Open SolidWorks → Tools → Add-ins and confirm the entry is removed

Removing SP/HF first ensures MDTools is unregistered correctly during uninstall.

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MDTools Add-in still appears in SolidWorks Add-ins List after Uninstall

MDTools Add-in still appears in SolidWorks Add-ins List after Uninstall

Related Articles

Why does MDTools crash when inserting a cavity or when creating a new block?

What SolidWorks Settings are modified/ disabled when MDTools is loaded?

Why can't MDTools find the Library?

When trying to click on the MDTools options and adjust settings, the error “Object reference not set to an instance of an object” appears. No changes made to settings get saved?

When trying to click on the MDTools options and adjust settings, the error “Object reference not set to an instance of an object” appears. No changes made to settings get saved?