Symantec Live Update Hangs at 99% in Windows Vista

by Abhishek Bhatnagar on November 11, 2008



Symantec Antivirus Live Update has a problem of hang at 99% in Windows Vista. The live update is launched, download is done, and after I pressed Finish button, it gave a small pop-up window showing a progress-bar saying “Updating Virus Protection Files”, this progress bar hangs at 99% and remains at 99% for ever, I have to manually end the process, it becomes not responding.



I tried to find a way out, and it worked for me, in this post I am going to share the method by which I solved this issue.


I follows the below three steps, it fixed my problem:

Update Live Update Applicaiton


Download the latest version of Symantec Live update Application from the link below:

Download Symantec Live Update

After this, install this version over your existing version of Symantec Live Update.


Change Symantec Live Update Settings


Go to Start > Control Panel > Live Update and change the General settings to Express Mode mode from interactive mode, and in Automatic Live Update to Automatic Mode. See the snapshots below:





Turn Off Tamper Protection


Goto Configuration > Tamper Protection and Turn off the Tamper Protection by Un-checking “Enable Tamper Protection” as shown below:



After this, restart the computer, and if you are lucky like me, it will not hang. If you still face this problem, leave a comment below.

If you like this article or this article helped you, you can +1 to recommend this article on google plus.

You can follow us on Twitter or join our Facebook Fan Page. If you have a question to ask us, submit your question at Answers By Trouble Fixers.

Looking for something else? Search here :

{ 7 comments… read them below or add one }

Pogo November 21, 2008 at 1:28 pm

Yes! Worked also for me! Was looking for months for a solution! Thank you!

Mohadeb December 1, 2008 at 12:26 am

I have followed the steps mentioned above. After that it is able to update it to 100%. But after that it is showing the old date of virus definition.
Can you please help me?

Mika February 17, 2009 at 4:59 pm

This did not work for me but it did put me on the right path.

I turned on “enhanced error support” under the Live Update General tab. I also, strangely enough, turned off the enable auto-protect (available by right clicking the system tray icon). After these two things, I updated near instantly, instead of slowly building up to hanging at 99%. I have since turned back on real time protection.

Thanks for the direction to the control panel settings for Symantec Live Update. I found it really helpful.

Mika February 17, 2009 at 5:01 pm

Oops, I meant I have since turned back on “enable auto-protect” not real time protection.

Duc Thanh March 9, 2009 at 8:04 am

thanks u , i’m looking for this solution 😉

Brian August 20, 2009 at 3:42 am

I don’t have a Automatic Live Update tab :(

Josh September 2, 2012 at 12:10 am

How did you manually end the hanging load window? When I try to use the task manager it tells me that access is denied and won’t close it and neither will hitting the red x or right clicking on it.

Leave a Comment

Previous post:

Next post:

© TroubleFixers – All about fixing computer troubles2007-2016 . All Rights Reserved.