800F0900 = unexpected internal XML parser error.
Judging from other related threads (e.g.,
http://groups.google.com/group/micro...6a980f7e22cf6b),
there is a very good chance that you are seeing the effects of a hijackware
infection!
NB: If you had no anti-virus application installed or the subscription had
expired *when the machine first got infected* and/or your subscription has
since expired and/or the machine's not been kept fully-patched at Windows
Update, don't waste your time with any of the below: Format & reinstall
Windows. A Repair Install will NOT help!
1. See if you can download/run the MSRT manually:
http://www.microsoft.com/security/ma...e/default.mspx
NB: Run the FULL scan, not the QUICK scan! You may need to download the
MSRT on a non-infected machine, then transfer MRT.EXE to the infected
machine and rename it to SCAN.EXE before running it.
2. Run a /thorough/ check for hijackware, including posting the requested
logs in an appropriate forum, not here.
Checking for/Help with Hijackware
http://aumha.net/viewtopic.php?f=30&t=4075
http://mvps.org/winhelp2002/unwanted.htm
http://inetexplorer.mvps.org/data/prevention.htm
http://inetexplorer.mvps.org/tshoot.html
http://www.mvps.org/sramesh2k/Malware_Defence.htm
http://www.elephantboycomputers.com/...moving_Malware
**Chances are you will need to seek expert assistance in
http://spywarehammer.com/simplemachi...php?board=10.0,
http://www.spywarewarrior.com/viewforum.php?f=5,
http://www.dslreports.com/forum/cleanup,
http://www.bluetack.co.uk/forums/index.php,
http://aumha.net/viewforum.php?f=30 or other appropriate forums as well.**
If these procedures look too complex - and there is no shame in admitting
this isn't your cup of tea - take the machine to a local, reputable and
independent (i.e., not BigBoxStoreUSA) computer repair shop.
=====================
Free unlimited installation and compatibility support is available for
Windows Vista, but only for Service Pack 2 (SP2). This support for Windows
Vista Service Pack 2 (SP2) is valid until November 26, 2009. Availability of
chat or e-mail support differs depending on your geographic location. Go to
http://support.microsoft.com/oas/def...4&gprid=582034 &
select appropriate category (e.g., Installation).
You'll find additional support for Vista SP2 issues in
microsoft.public.windows.vista.general newsgroup and in these forums:
•
http://social.answers.microsoft.com/...stawu/threads/
•
http://social.answers.microsoft.com/...nstall/threads
•
http://social.technet.microsoft.com/...stasp/threads/
Vista SP2 Installation Tips:
• Your computer will restart several times during the installation process:
Make certain you've saved your work and closed all open applications before
beginning the install.
• Disable (1) your anti-virus application, (2) any real-time system
protections afforded by any anti-spyware applications (except Defender), &
(3) your third-party firewall (if any) and then (4) enable the Windows
Firewall _before installing or uninstalling_ Vista SP2.
• The installation process can take an hour or more: If you're installing
SP2 on a portable computer, make sure that you plug-in the power cord and
have the battery inserted into its bay.
• Vista SP1 is a prerequisite for installing SP2. If you use Windows Update
or the Automatic Update feature in Windows Vista, you will not be offered
the option to install SP2 until you first install SP1.
--
~Robear Dyer (PA Bear)
MS MVP-IE, Mail, Security, Windows Client - since 2002
www.banthecheck.com
Lisa wrote:
> I have not been able to update Windows Service Pack 2 for Windows Vista.
> It
> does not get passed 0% and returns the unknown error code 800F0900. Thank
> you for suggestions.
Linear Mode
