Here it is:
You can repair UFT One 15.0.2 or LeanFT with the below steps:
Windows 7
Press the 'Start' button
Find command prompt and right click on it.
Select ''Run as Administrator''. A Dos Prompt will appear.
Copy the following command to the dos prompt and press enter.
UFT One 15.0.2:
MsiExec.exe /fm {CEB6A200-6D2A-435C-B807-B7955A9AE687}
LeanFT:
MsiExec.exe /fm {DF2F8B50-2197-4D9F-9066-88C5B12D2E10}
Windows 10
Press the 'Start' button
Start typing ''Command'' and the Command Prompt should appear on the list. Right click on it.
Select ''Run as Administrator''. A Dos Prompt will appear.
Copy the following command to the dos prompt and press enter.
UFT One 15.0.2:
MsiExec.exe /fm {CEB6A200-6D2A-435C-B807-B7955A9AE687}
LeanFT:
MsiExec.exe /fm {DF2F8B50-2197-4D9F-9066-88C5B12D2E10}