405582 - loops back to update but unable to install update received from Mozilla

Status: RESOLVED DUPLICATE of bug 452162

(Thunderbird :: Installer, defect)

Description

[Joey Ngan]

User-Agent:       Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; FunWebProducts; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.0.04506; .NET CLR 1.1.4322; InfoPath.2)
Build Identifier: Thunderbird version 2.0.0.6 (20070728)

Every time I turn on my computer, it goes into Mozilla Thunderbird update.  Then when it tries to install, it says that some files are unable to update because I have to terminate files that are running and have authorization.  I exited all programs and I 'authorized' each and every time Microsoft Explorer asks if I initiated the program, etc.  Each time Mozilla downloads the update to my computer and each time it fails on installing.  I eventually have to 'Cancel' to get back to my Thunderbird email.  What's the problem?
  I'm afraid to try to download anew an entire "version" as I do not want to lose all my existing folders, files and settings.  What's your advice.  Can I continue to just operate on my OLD existing version?
  Thanks

Reproducible: Always

Steps to Reproduce:
1.
2.
3.