Assuming that means you installed IE8 Beta 2 AFTER you'd installed Vista
SP1:

=> Post the verbatim error message you get when trying to uninstall IE8 Beta
2.

=> See both parts of the section "How to uninstall Internet Explorer 8 Beta
2" here: http://support.microsoft.com/kb/949787

=> Do you use a "Registry cleaner"? Have you used one since you installed
IE8 Beta 2? If so, you're out of luck.

=> Post about this issue in the IE Beta newsgroup:
news://msnews.microsoft.com/microsof...texplorer.beta

NB: The only IE8 Beta support for non-US/CA residents is in that newsgroup.
You may end up having to reinstall Vista; such are the risks of installing
beta software.

The only possibly good news in all of this is that you should be able to
install the final release of IE8.
--
~PA Bear


matthew steward wrote:
> I installed IE8 b2 from IE7 on Vista SP1 and I tried to uninstall the
> update but it doesn't work. The uninstall can't complete.
> "PA Bear [MS MVP]" wrote:
>> [Such inline, cut/paste replies are not helpful.]
>>
>> If you, in fact, installed IE8 Beta 1 or Beta 2 *before* you installed
>> Vista SP1, you'll have to uninstall Vista SP1 before you'll be able to
>> uninstall IE8 Beta 2.
>>
>> matthew steward wrote:
>>> 2. If, however, you installed Vista SP1 without having installed IE8
>>> Beta
>>> 1,
>>> you will be able to uninstall IE8 Beta 2.
>>> Well, I have an error message telling me the uninstallation aborted
>>> 1. Does disabling (or even uninstalling) Comodo Firewall AND THEN
>>> enabling
>>>> the Windows Firewall allow KB955302 to install?
>>>
>>> No
>>> 2. Are you getting an error similar to "configuring updates stage 3 of
>>> 3.
>>> 0%
>>>> complete"? (cf. http://support.microsoft.com/kb/949358)
>>> No
>>> 3. Did you install Vista SP1 via Windows Update or manually?
>>> Via Automatic Updates (Windows Update, had no problem with it)
>>>
>>>>>>> Comodo 3 FW (v.378)
>>>>>>> AVAST HOME EDITION v. 4.8.1229
>>>>>>> SpySweeper v. 5.8 (build 55)
>>>>>>> ST, SAS, A2antimalware on demand scanners
>>>>>>> SpywareBlaster 4.1
>>>>
>>>> 4. Were all of the above fully disabled (including "real-time
>>>> protection"
>>>> components/services of all anti-spyware applications) and was the
>>>> Windows
>>>> Firewall enabled when you installed WinXP SP3 and/or any IE8 Beta
>>>> build?
>>> I'm on Vista Sp!, I upgraded from Vista Home Premium. I only have AVAST
>>> and
>>> SpySweeper on RP and they were all turned off. Now ST and A-2antimalware
>>> are
>>> loading services the same when windows start but I did not check in
>>> Process
>>> manager. I can only say their RP is turned OFF as I run them as
>>> on-demand
>>> scanners. Spywareblaster wasn't disabled but I don,t think it's the
>>> problem.
>>>
>>> I'd say it's IE9 b2 and would like to know how to get back to IE7. I
>>> tried
>>> uninstalling this update in Safe Mode with the same bad result.
>>>
>>>>>>> Contacted the microsoft support without success.
>>>>
>>>> 5. Explain.
>>>>
>>>> Unlimited installation and compatibility support for Vista SP1 is
>>>> available at no charge through 18 Mar-09. Go to
>>>> http://support.microsoft.com/oas/default.aspx | select Windows Vista |
>>>> select Windows Vista Service Pack 1
>>> Yes, Support there is slow and non-efficient. I emailed the guy and wait
>>> for
>>> an answer but I am hoping faster solutions in this newsgroup
>>>
>>>> 1. If you installed IE8 Beta 1, then installed Vista SP1, and then
>>>> installed IE8 Beta 2, you're right: You won't be able to uninstall IE8
>>>> Beta 2 or IE8 Beta 1 without first uninstalling Vista SP1.
>>>>
>>>> 2. If, however, you installed Vista SP1 without having installed IE8
>>>> Beta
>>>> 1, you will be able to uninstall IE8 Beta 2.
>>>>
>>>> If #1 is the case, the only good news is that you'll be able to install
>>>> IE8 Final Release.
>>>>
>>>> Back to your problem, please answer the following by number, not
>>>> inline...
>>>>
>>>> 1. Does disabling (or even uninstalling) Comodo Firewall AND THEN
>>>> enabling
>>>> the Windows Firewall allow KB955302 to install?
>>>>
>>>> 2. Are you getting an error similar to "configuring updates stage 3 of
>>>> 3.
>>>> 0% complete"? (cf. http://support.microsoft.com/kb/949358)
>>>>
>>>> 3. Did you install Vista SP1 via Windows Update or manually?
>>>>
>>>>>>> Comodo 3 FW (v.378)
>>>>>>> AVAST HOME EDITION v. 4.8.1229
>>>>>>> SpySweeper v. 5.8 (build 55)
>>>>>>> ST, SAS, A2antimalware on demand scanners
>>>>>>> SpywareBlaster 4.1
>>>>
>>>> 4. Were all of the above fully disabled (including "real-time
>>>> protection"
>>>> components/services of all anti-spyware applications) and was the
>>>> Windows
>>>> Firewall enabled when you installed WinXP SP3 and/or any IE8 Beta
>>>> build?
>>>>
>>>>>>> Contacted the microsoft support without success.
>>>>
>>>> 5. Explain.
>>>>
>>>> Unlimited installation and compatibility support for Vista SP1 is
>>>> available at no charge through 18 Mar-09. Go to
>>>> http://support.microsoft.com/oas/default.aspx | select Windows Vista |
>>>> select Windows Vista Service Pack 1
>>>>
>>>> matthew steward wrote:
>>>>> You just can't uninstall IE8 b2 update. Impossible to go back to
>>>>> IE7!!!
>>>>> Not to my knowledge. They warned me before installing it 4-5 weeks
>>>>> ago!
>>>>>
>>>>> "PA Bear [MS MVP]" wrote:
>>>>>> Uninstall IE8 Beta 2 then try again.
>>>>>>
>>>>>> matthew steward wrote:
>>>>>>> ACER DESKTOP 1GB RAM, 320 GB HD, 1.6 GHZ.
>>>>>>> Comodo 3 FW (v.378)
>>>>>>> AVAST HOME EDITION v. 4.8.1229
>>>>>>> SpySweeper v. 5.8 (build 55)
>>>>>>> ST, SAS, A2antimalware on demand scanners
>>>>>>> SpywareBlaster 4.1
>>>>>>> IE 8 b2
>>>>>>> I'd like a fix for this issue as I tried even removing my Comodo3 FW
>>>>>>> and
>>>>>>> with resident protection AV OFF and downloading the setup from
>>>>>>> microsoft
>>>>>>> web
>>>>>>> sites but it just won't install and constantly asks to install
>>>>>>> itself.
>>>>>>> Contacted the microsoft support without success.