Go to Add or remove programs in the Windows settings and uninstall both UiPath Studio applications. Download the latest UiPath Studio version from the Resource Center in Automation Cloud and install it. After installing the latest version, Studio will receive automatic updates when they are available.
Check out the document
Open Command Prompt or PowerShell as an administrator. Navigate to the directory where the UiPath installer is located. Use the following command to perform a silent uninstall
Check out this thread
UiPathStudio.msi /quiet
Delete the entire Studio folder: C:\Users {username}\AppData\Local\UiPath. And also if needed: C:\Users {username}.nuget\packages
Tried No 2, the installer window popup was visible, pressed ok.
But then nothing else shows on my screen, I see on my windows task Manager UiPath is installing
This error occurs when the installer is unable to remove the previous version of UiPath Studio.
Try with the follow below
Make sure that there is no anti-virus preventing the setup to write in that folder. Also, check the permissions for that folder.
Delete the %localappdata%[&UiPath&] folder and try installing again
I looked in the registry, and under my user, there are still some UiPath folders, It is in the “Classes” Folder, but not under "SOFTWARE\Classes\Installer\Products"
Perfect if register can be modifies by you…then please delete them and check in control panel you shpuld mostly see UiPath but when you click it would say already uninstalled