Suggest you read this:
http://aumha.net/viewtopic.php?t=15574

Then have the system scanned by the Kaspersky Online Scanner:
http://www.kaspersky.com/virusscanner

That way you'll be as sure as possible from an online scan that there is
no active/hidden malware.

MowGreen [MVP 2003-2007]
===============
*-343-* FDNY
Never Forgotten
===============


N. TDC wrote:

> yes, i did
> btw, I m pretty sure there is no virus or spyware since i have checked the
> system several times
>
> "MowGreen [MVP]" wrote:
>
>
>>Did you install the updates ?
>>
>>MowGreen [MVP 2003-1007]
>>===============
>> *-343-* FDNY
>>Never Forgotten
>>===============
>>
>>
>>N. TDC wrote:
>>
>>
>>>Well, it turns out another one. svchost.exe-application error, "The
>>>instruction at "0x7521b07e" referenced memory at "0x00000011". The memory
>>>could not be "written". I click OK, then PC no response. I tried to restart
>>>one of the svchost.exe in the taskmanager, it ll be awake with some of the
>>>devices are disabled. Any ideas?
>>>
>>>
>>>
>>>"MowGreen [MVP]" wrote:
>>>
>>>
>>>
>>>>Give this a shot: http://support.microsoft.com/kb/932494
>>>>
>>>>If the sound is onboard [built into the motherboard] then it's entirely
>>>>possible that svchost is taking all of the CPU cycles causing the no
>>>>sound issue.
>>>>Download the Windows Update Agent for the version of XP installed,
>>>>either 32 (x86) or 64 (x64)bit and save it.
>>>>Then download KB928791, either 32 (x86) or 64 bit (x64) and save it:
>>>>http://support.microsoft.com/kb/927891/
>>>>
>>>>When the downloads complete install the Windows Update Agent first, then
>>>>install KB927891, and restart the system.
>>>>Did that resolve the issue ?
>>>>
>>>>MowGreen [MVP 2003-2007]
>>>>===============
>>>> *-343-* FDNY
>>>>Never Forgotten
>>>>===============
>>>>
>>>>
>>>>N. TDC wrote:
>>>>
>>>>
>>>>
>>>>>When Windows booting, I get "svchost.exe-Application Error", and it state
>>>>>"The instruction at "0x021cafe2" referenced memory at "0x00000000". The
>>>>>memory could not be "written", somtimes I get " "0x0235ad2a" referenced
>>>>>memory at "0x00000000". ". Then I get another error at "
>>>>>"0x7521b3e1"referenced memory at "0x00000009" The memory could not be
>>>>>"read." After I click ok, no audio, all shared folder disconnected, but the
>>>>>network still working fine. Is there a fix for this?
>>>>>
>>>>>
>>>>