File server Version Upgrade

Nightmare:

File server in my network was running on Windows 2003 Server, where in i felt that users Home -directories size is exceeding more than expected , I was of thought why not implement quotas and restrict users with some threshold, i read about FSRM feature that comes with Windows 2003R2 .
I planned to upgrade my Windows 2003 server to Windows2003 R2 , Everything worked fine untill my installation reached 39% and boooooooooooooooooooooooom shoots the blue screen.
Damn it , Chilling sensation ran down my spine , message was related to CPQASM2.SYS file which made this memory dumping.

Finally, after a hectic research, one article saved my life and time, I thought posting this article as it might help others too.

""""Recovery Console must be used to recover the server by deleting the CPQASM2.SYS file. Recover the server by performing the following steps:
1. Reboot the system.

2. Press a key when prompted to boot from the Windows installation CD.The following message will be displayed:This computer is already in the process of being upgraded to Microsoft Windows. What do you want to do?- To continue the current upgrade, press ENTER.- To cancel the current upgrade and install new version of Microsoft Windows, press F10- To exit Setup without installing Microsoft Windows, press F3.

3. Press F10 to restart text-mode setup. (This will not cancel the upgrade unless the process proceeds to the point where the hard drive is partitioned, formatted, and files are copied to it.)Text-mode setup will begin and will display the following message:This portion of the Setup program prepares Microsoft (R) Windows (R) to run on your computer.- To set up Windows now, press ENTER.- To repair a Windows installation using Recovery Console, press R.- To quit Setup without installing Windows, press F3.

4. Press R to launch Recovery Console.

5. Log into the Windows installation that is being upgraded.

6. Delete the CPQASM2.SYS file from the SYSTEM32\DRIVERS subdirectory of the Windows installation.

7. Exit from Recovery Console using the "exit" command. (This will reboot the system, and Windows Setup will resume the graphics-mode portion of the upgrade process. The upgrade will complete normally.)

8. After the upgrade is complete, reinstall version 5.35.0.0 of the CPQASM2.SYS driver downloading driver or using proliant support pack which is the best recommendationafter delete that file continue with windows installation""""