Scenario: Installation windows may disappear while installing K7 Endpoint security if any traces of K7 presence in the system.
Steps to follow:
1. Run the K7 removal tool and then try installing the product.
2. If the issue persist Click on Start->Click on Run->Type regedit and enter
3. Navigate to LOCAL_MACHINESoftwareK7 Computing and Delete the key K7tssetup only
4. initiate installation of K7 again.
Note: If the OS is 64 bit delete the K7tssetup key under HKEY_LOCAL_MACHINESoftwareWow64NodeK7 Computing and then try installing the K7 End Point.