How to Remove the Revit Server Accelerator Environment Variable

October 4, 2025 Sherry Pittman

If you are using an accelerator with Revit Server and need to remove it, you will need to delete the environment variable since there is not a way natively in Revit to remove it.

If you are using the IMAGINiT Clarity addin you can remove it via the Tools dropdown on the IMAGINiT tab, Clarity panel.  If you use this tool when you have a model open, the change will not take affect until you exit out of that session of Revit and start a new one.

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How to Manually Remove the Environment Variable

Close out of Revit first.

Through Windows Explorer, right click on This PC and select Properties or through the Control Panel, select System

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Select Advanced System Settings

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Select Environment Variables

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Locate the RSACCELERATOR201# that you want to remove, then select Delete

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OK out of all dialog boxes

About the Author

Sherry Pittman

Sr. Technical Support Specialist, Building<br><br>Sherry is a certified Autodesk Building Solutions Technical Support Specialist at IMAGINiT. She has been a speaker at several AUGI Cad Camps and a co-speaker at Autodesk University. She is also a certified expert in Revit Architecture. She has 30 plus years of experience in the Architectural field and supports all the Autodesk Building Solutions software. She began her career with us as an Application Engineer conducting training, product demonstrations, and implementation services. She now focuses her knowledge and dedication to the National Solution Center here at IMAGINiT.

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