Doing a google search for " ezi_hnm2.exe",  it appears it is a trojan.  You need to do a comple antivirus scan with an up to date antivirus program and antivirus data file.  Also do a spyware scan with an up to date spyware program such as Adaware of Spybot.

David

 

ezi_hnm2.exe is related to the Dell Network Assistant.
I don`t know anything about this program, but while researching your problem I see that ezi_hnm2.exe can use 50% of the CPU

 

Just try a little experiment to see if it helps your problem. 
Stop ezi_hnm2.exe running at startup

 

To disable it, go to start > run and type:

msconfig

OK

Then click the startup tab and disable these entries (remove the check)

DellSupport
Dell Network Assistant

Click apply and ok.

Then reboot your computer.

 

After reboot, you'll get a message that something has been modified in your System configuration Utility. Check the box there where it says not to display this message again (or something similar).

OK

 

OR
The easy way to get rid of it is start up the network assistant, go into the settings, and turn off the "start with windows", "start on network failure" and any other "start on ..." options. Then exit it and it's gone.

 

If you find that you need it to run you can just reverse the changes you made

Thank you for your response. Luckily I don't think I have been subjected to a trojan attack. Have managed to solve the problem by removing Dell Networking Assistant from the start up. Seems that this file relates to Dell's programme.

 

Regards

David