Thanks. I did downloaded malawarebytes and ran a scan. It identified a large number of errors and then asked that i should buy the software for removing these errors. It removed 100 errors on its own. Since I was not sure if I should pursue it further, i did not opt to buy the software and uninstalled it. The problem remains.
At another site, it was recommended that one should run whocrashed 3.01 which I did. It identified two drivers
including the one that you identified. The second one was NTKRPAMP.EXE. IT sugested to go to google for help. But the google pages appear fairly confusing. I have saved the output report of whocrashed in case you need it.
I do not mind buying any of the software if it would help.
I think this problem started with my subscription to IOLO software. I also have Norton antivirus. Perhaps there is a conflict. Your help would be appreciated.