Menu Antivirus Resources Home Download Free Antivirus Now! Using Symantec Antivirus Products Updating Your Virus Definitions Troubleshooting Problems
FAQ Spyware More Antivirus And Security Information Antivirus Resources for IT Staff Search Antivirus Resources

Proactive Threat Protection Definition Fix

Symantec Endpoint Protection 11 (SEP 11) includes a feature called Proactive Threat Protection, which seeks out suspicious behavior on your computer, and isolates it. Since brand new viruses may not always be immediately detected by antivirus software, Proactive Threat Protection is a good barrier against the unknown.

Unfortunately, some users of SEP 11 at NCSU have noticed that their Proactive Threat Protection defitions are stuck at Wednesday, July 30, 2008 r1. Symantec Corporation claims that this issue is cosmetic, and actual threat protection services remain current.

However, NCSU OIT understands that many SEP 11 users are concerned about this issue, and so we have created a small repair utility, which corrects this issue.

To obtain and use our repair utility, follow these steps:

  1. Make sure you are connected to the Internet.

  2. Open your Web browser.

  3. Download PTPRegFix.exe (, and save it to your Desktop. You may need to log in with your Unity ID and password.

  4. When the download completes, close your Web browser and any other programs that are running.

  5. Open the PTPRegFix.exe utility:
    • Windows Vista users: right-click on the PTPRegFix.exe icon. When the menu appears, select Run as administrator.
    • Windows XP, 2000, Server 2003 users: double-click on the PTPRegFix.exe icon.

  6. If you get a Security Warning message, select the Run button.
    • Windows Vista users only: If you are asked to give permission to install the program, click Allow.

  7. When the Self-extracting Archive window opens, read the information in the window, then click OK.

  8. The utility will perform the necessary repair functions on SEP 11. During this process, you will notice Windows report security errors on your computer, and Symantec Endpoint Protection 11 will be temporarily disabled. This is normal behavior, and should not be interrupted. The errors will correct themselves after a few moments.
    running SEP 11 repair utility

  9. When the utility completes, it will automatically close.

Questions or problems?

If you have problems while performing these steps, contact the NC State Helpdesk for assistance.


Page last modified November 7, 2008 by helee2