Hi, I downloaded the file: 18.104.22.168-RATL-RRENT-WIN-all-FP04. Its size is: dir 7* Volume in drive D has no label. Volume Serial Number is B269-AF38 Directory of D:\download 06/04/2016 10:40 PM <DIR> 22.214.171.124-RATL-RRENT-WIN-all-FP04 06/04/2016 09:14 PM 131,195,766 126.96.36.199-RATL-RRENT-WIN-all-FP04.zip 1 File(s) 131,195,766 bytes 1 Dir(s) 608,497,197,056 bytes free >dir Volume in drive D has no label. Volume Serial Number is B269-AF38 Directory of D:\download\188.8.131.52-RATL-RRENT-WIN-all-FP04 06/04/2016 10:40 PM <DIR> . 06/04/2016 10:40 PM <DIR> .. 11/14/2008 03:23 PM 65,597,440 184.108.40.206-RATL-RRENT-WIN-en-US-FP04.msp 11/14/2008 03:10 PM 65,597,952 220.127.116.11-RATL-RRENT-WIN-ja-JP-FP04.msp 2 File(s) 131,195,392 bytes 2 Dir(s) 608,497,197,056 bytes free >18.104.22.168-RATL-RRENT-WIN-en-US-FP04.msp When i run it a window pops up which displays the following message: The upgrade patch cant be installed by the windows Installer service because the program to be upgraded may be missing or the upgrade the upgrade patch may update a different version of the program. Verify that the program to be upgraded exist on your computer & that you have the correct upgrade patch Some body please guide me how to install rational rose on my laptop. I am using i5 machine & i have windows 10 installed. Please guide me. Zulfi.