You can repair UFT 12.52 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 12.52:

MsiExec.exe /fm {3DEA53BD-CB54-4C44-9486-54A0D714B5BA}

Lean FT:

MsiExec.exe /fm {16556B27-928D-4572-9B85-D916261EA6E8}

**Windows 8/8.1**

From the Charms screen, start typing the word 'Command'. A list of matching programs will appear.

Right click 'Command Prompt'.

Select Run As Administrator. A Dos Prompt will appear.

Copy the following command to the dos prompt and press enter.

UFT 12.52:

MsiExec.exe /fm {3DEA53BD-CB54-4C44-9486-54A0D714B5BA}

Lean FT:

MsiExec.exe /fm {16556B27-928D-4572-9B85-D916261EA6E8}

**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 12.52:

MsiExec.exe /fm {3DEA53BD-CB54-4C44-9486-54A0D714B5BA}

Lean FT:

MsiExec.exe /fm {16556B27-928D-4572-9B85-D916261EA6E8}