@Rorobot, Could you please check\share the below details?
- Does the %programdata%\uipath\license folder exist?
- Does the user has privilege\permissions to the above directory?
- Did it work before and stop working now or never worked?
- Is your robot connected to the Orchestrator and licensed from there or a stand-alone (only studio) license is activated?
- Can you please follow the other mode of activation mentioned here:Activate Studio?
- Please restart the machine once
- Do you have both community edition & enterprise edition installed in the machine?
- If the none of the above steps help, please perform a clean installation by following the below steps:
a. delete the license folder in %programdata%\uipath
b. Uninstall UiPath Studio
c. Delete %programdata%\UiPath if the folder exists
d. Delete %localappdata%\UiPath if the folder exists
e. Delete %temp%\nuget if the folder exists
f. Delete %localappdata%\nuget\cache if the folder exists
g. Delete %userprofile%.nuget if the folder exists
h. Restart your machine
i. Install the desired version.
j. Please activate the license from the studio.