Windows host process (Rundll32) has stopped working

Hi,

NVSVC.DLL is part of your Nvidia video drivers and they may need to be updated (or re-installed).
See the next message for how to update the drivers manually though that may not be needed or
help.

To troubleshoot the issue :

What is rundll32.exe And Why Is It Running?
http://www.howtogeek.com/howto/windows-vista/what-is-rundll32exe-and-why-is-it-running/

What's the suspicious Rundll32.exe process?
http://windowsxp.mvps.org/rundll32.htm

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Try these to clear corruption and repair/replace damaged/missing system files.

Run DiskCleanup - Start - All Programs - Accessories - System Tools - Disk Cleanup

Start - type in Search box -  COMMAND   find at top of list -  RIGHT CLICK  -  RUN AS ADMIN

sfc /scannow

How to analyze the log file entries that the Microsoft Windows Resource Checker (SFC.exe) program
generates in Windows Vista cbs.log
http://support.microsoft.com/kb/928228


Then run checkdisk - schedule it to run at next start and then Apply OK your way out then restart.

How to Run Check Disk at Startup in Vista
http://www.vistax64.com/tutorials/67612-check-disk-chkdsk.html

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If no joy try to determine what the cause is :

How to troubleshoot a problem by performing a clean boot in Windows Vista
http://support.microsoft.com/kb/929135

How to troubleshoot performance issues in Windows Vista
http://support.microsoft.com/kb/950685

Optimizing Microsoft Windows Vista Performance
http://support.microsoft.com/kb/959062

To see all that is loading bootup - wait a few minutes without doing anything - then Right Click
TaskBar - Task Manager - take a look at Appplications - Processes - Services - this is a quick
reference (if you have a little box on Lower Left - Show for All Users then check that).

How to Check and Change the Startup Programs in Vista
http://www.vistax64.com/tutorials/79612-startup-programs-enable-disable.html

A quick check to see which are loading is Method 2 there - using MSCONFIG then post a list of
those here.

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Tools that should help :

Process Explorer - Free - Find out what files, registry keys and other objects processes have open,
which DLLs they have loaded, and more. This uniquely powerful utility will even show you who owns
each process.
http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx

Autoruns - Free - See what programs are configured to startup automatically when your system boots
and you login. Autoruns also shows you the full list of Registry and file locations where applications can
configure auto-start settings.
http://technet.microsoft.com/en-us/sysinternals/bb963902.aspx

Process Monitor - Free - Monitor file system, Registry, process, thread and DLL activity in real-time.
http://technet.microsoft.com/en-us/sysinternals/bb896645.aspx

There are many excellent free tools at Sysinternals
http://technet.microsoft.com/en-us/sysinternals/default.aspx

WhatsInStartUP - Free - This utility displays the list of all applications that are loaded automatically
when Windows starts up. For each application, the following information is displayed: Startup Type (Registry/Startup Folder), Command -Line String, Product Name, File Version, Company Name,
Location in the Registry or file system, and more. It allows you to easily disable or delete unwanted
programs that runs in your Windows startup.
http://www.nirsoft.net/utils/what_run_in_startup.html

There are many excellent free tools at NirSoft
http://www.nirsoft.net/utils/index.html

Window Watcher - Free - Do you know what's running on your computer? Maybe not. The Window
Watcher tells all, reporting every window created by every running program, whether the window
is visible or not.
http://www.karenware.com/powertools/ptwinwatch.asp

Many excellent free tools and an excellent newsletter at Karenware
http://www.karenware.com/

Hope these help.