I have been using Norton 2009 and now 2010 with Calibre for over a year without problems. I believe that suggesting the original poster trash their antivirus (which they probably paid good money for) is an unacceptable solution.
Dear OP:
- If you have uninstalled Calibre, re-install and run it.
- Open Norton main screen by clicking on its icon in the system tray.
- In the "Computer" section, select "Settings"
- Under the "Exclusions" section, select "Exclude signature"
- Click "Add", and select "calibre" from the list
* OPTIONAL: I would appreciate if you would next select "Risk Details" and send me a message telling me what it says under "Risk Type"
- Click OK and if it asks you any "are you sure" type questions say yes.
- calibre.exe should now be restored from the Norton "vault" back where it belongs.
- Run calibre.
** If the above does not work, there are other configuration options that can help. This problem can be solved without uninstalling Norton.
If you have future troubles with Norton, your questions might better be posted at
http://community.norton.com/
Dear Norton Haters: I too hated Norton for many years. but as of 2009 they released an all-new antivirus that is not the CPU hog of former antivirs. I was using AVG free, but it was letting too many baddies through. Norton caught them all.
I did significant testing of AVG, AVAST, Kaspersky, and Norton before making my decision. I tested CPU load, I tested virus detection, and I tested ease of use. Since I bought a 3-seat license, I chose Norton over Kaspersky because I found Kaspersky configuration to be too confusing for my less-techie family members.
I chose Norton. I respect your decisions regarding your choice; I expect the same in return.
Lest anyone dismiss me as naive, technically incompetent, or behind the times based upon my selection of Norton: I have my degree in computer science. I have been a hardware and software designer for aerospace equipment for over 20 years. I bought my first computer in 1976 and have been active in the on the internet since before it went public (ARPANET). I maintain MAC, Linux, and Windows computers at home. I do computer virus removal and file reclamation as a side business. I write for leading computer magazines.
PS: In my testing, AVG 8 and above are more CPU hungry than Norton.