Solution 2: Repairing LiveUpdate
Follow the instructions in the order shown.
To download the LiveUpdate installation file
Start your Web browser and connect to the Symantec LiveUpdate page.
In the first section of the updates and patches section, click the Lusetup.exe file. If prompted, click Save, Save File, or Save this program to disk, depending on which option you see. (Not all Web browsers prompt you for this. For example, Netscape simply presents the Save As dialog box as described in the next step.)
Save the file to the Windows desktop. Do not install it at this time.
To set Windows to Show All files
Start Windows Explorer.
Do one of the following:
In Windows 95/98/NT, click View > Options.
In Windows Me/2000/XP, click Tools > Folder Options.
Click the View tab.
Uncheck "Hide file extensions for known file types."
Do one of the following:
In Windows 95/NT, click "Show all files."
In Windows 98, in the Advanced settings box, click "Show all files" under the "Hidden files" folder.
In Windows Me/2000/XP, uncheck "Hide protected operating system files" and click "Show hidden files and folders" under the "Hidden files" folder.
Click Yes if you see a warning dialog box.
Click Apply, and then click OK.
To searching for the Product.Catalog.LiveUpdate or the Product.Inventory.LiveUpdate file
LiveUpdate 1.9 and earlier uses the Product.Catalog.LiveUpdate file to keep track of what Symantec products you have installed. LiveUpdate 2.0 uses the Product.Inventory.LiveUpdate file. Unless you know which version you have, it is easiest to search for Product.Catalog.LiveUpdate first.