Greetings:

I use Windows 2000 professional. A while ago Window 2000 starts to flash
this dialog box at me saying that some critical files have been replaced
by unknown versions and could lead to system instability, it asks me to
insert original Windows CD-ROM to reinstall good versions but I ignored
the message.

When I upgraded my Firefox from 1.0 to 1.4 many applications all of a
sudden become very unstable, including Firefox, which would crash
(general protection error) at random times during its execution
(sometimes right at the beginning).

After I downgraded my Firefox from 1.4 back to 1.0, almost all of the
instability problems went away. However, the "insert Windows 2000 CDROM"
dialog box disappeared (i.e., no longer flashes at startup) and I'm left
with a very nasty problem which has since plagued my system and my
normal style of work with my computer:

Whenever I open any Explorer windows (NOT Internet Explorer, just the
regular file/directory explorer after I click on "my computer" or "my
documents" icon), and then attempt to close them by clicking on the "x"
button at the top-right corner, I always get an illegal
instruction/protection error for explorer.exe that performs a memory
dump and re-login my account (symptoms that are typical of a crashed
explorer.exe thread, which is essential to a Windows session). I also
tried to close Explorer windows in other ways, such as terminating its
process in task manager, or by pressing Alt+F4, or by selection
File->Close, but to no avail, the same protection error occurs each time
and it's driving me nuts.

I'd really like NOT have to reinstall my whole system, if anyone's been
in a similar situation and has some solutions, I'm all ears.

Regards,

gunner

Hi

Open regedit
Find this key
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Curr entVersion\Setup
Modify values of SourcePath & ServicePackSourcePath

Example:
If the I386 directory is at D:\WinXp\I386\
SourcePath=D:\WinXp\
ServicePackSourcePath=D:\WinXp\

Or enter drive letter of your CD device
Example:
SourcePath=E:\
ServicePackSourcePath=E:\

Restart the computer

Then run SFC /Purgecache
(Purges the file cache)
Then SFC /Scannow
(Replaces incorrect versions of system files)

Regards

"Shuo Xiang" <sxiang@uwaterloo.ca> wrote in message
news:dhucf1$v8a$4@rumours.uwaterloo.ca...
> Greetings:
>
> I use Windows 2000 professional. A while ago Window 2000 starts to flash
> this dialog box at me saying that some critical files have been replaced
> by unknown versions and could lead to system instability, it asks me to
> insert original Windows CD-ROM to reinstall good versions but I ignored
> the message.
>
> When I upgraded my Firefox from 1.0 to 1.4 many applications all of a
> sudden become very unstable, including Firefox, which would crash (general
> protection error) at random times during its execution (sometimes right at
> the beginning).
>
> After I downgraded my Firefox from 1.4 back to 1.0, almost all of the
> instability problems went away. However, the "insert Windows 2000 CDROM"
> dialog box disappeared (i.e., no longer flashes at startup) and I'm left
> with a very nasty problem which has since plagued my system and my normal
> style of work with my computer:
>
> Whenever I open any Explorer windows (NOT Internet Explorer, just the
> regular file/directory explorer after I click on "my computer" or "my
> documents" icon), and then attempt to close them by clicking on the "x"
> button at the top-right corner, I always get an illegal
> instruction/protection error for explorer.exe that performs a memory dump
> and re-login my account (symptoms that are typical of a crashed
> explorer.exe thread, which is essential to a Windows session). I also
> tried to close Explorer windows in other ways, such as terminating its
> process in task manager, or by pressing Alt+F4, or by selection
> File->Close, but to no avail, the same protection error occurs each time
> and it's driving me nuts.
>
> I'd really like NOT have to reinstall my whole system, if anyone's been in
> a similar situation and has some solutions, I'm all ears.
>
> Regards,
>
> gunner
>
>
>
>
>

Thanks a lot David! I was wondering how I could change the default file
finder so that it could find the Win2000 source files from non-standard
places (i.e. not directly off of the root of the Win2k cdrom). Your post
is sooooooooo helpful!

Shuo


David wrote:
> Hi
>
> Open regedit
> Find this key
> HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Curr entVersion\Setup
> Modify values of SourcePath & ServicePackSourcePath
>
> Example:
> If the I386 directory is at D:\WinXp\I386\
> SourcePath=D:\WinXp\
> ServicePackSourcePath=D:\WinXp\
>
> Or enter drive letter of your CD device
> Example:
> SourcePath=E:\
> ServicePackSourcePath=E:\
>
> Restart the computer
>
> Then run SFC /Purgecache
> (Purges the file cache)
> Then SFC /Scannow
> (Replaces incorrect versions of system files)
>
> Regards
>
> "Shuo Xiang" <sxiang@uwaterloo.ca> wrote in message
> news:dhucf1$v8a$4@rumours.uwaterloo.ca...
>
>>Greetings:
>>
>>I use Windows 2000 professional. A while ago Window 2000 starts to flash
>>this dialog box at me saying that some critical files have been replaced
>>by unknown versions and could lead to system instability, it asks me to
>>insert original Windows CD-ROM to reinstall good versions but I ignored
>>the message.
>>
>>When I upgraded my Firefox from 1.0 to 1.4 many applications all of a
>>sudden become very unstable, including Firefox, which would crash (general
>>protection error) at random times during its execution (sometimes right at
>>the beginning).
>>
>>After I downgraded my Firefox from 1.4 back to 1.0, almost all of the
>>instability problems went away. However, the "insert Windows 2000 CDROM"
>>dialog box disappeared (i.e., no longer flashes at startup) and I'm left
>>with a very nasty problem which has since plagued my system and my normal
>>style of work with my computer:
>>
>>Whenever I open any Explorer windows (NOT Internet Explorer, just the
>>regular file/directory explorer after I click on "my computer" or "my
>>documents" icon), and then attempt to close them by clicking on the "x"
>>button at the top-right corner, I always get an illegal
>>instruction/protection error for explorer.exe that performs a memory dump
>>and re-login my account (symptoms that are typical of a crashed
>>explorer.exe thread, which is essential to a Windows session). I also
>>tried to close Explorer windows in other ways, such as terminating its
>>process in task manager, or by pressing Alt+F4, or by selection
>>File->Close, but to no avail, the same protection error occurs each time
>>and it's driving me nuts.
>>
>>I'd really like NOT have to reinstall my whole system, if anyone's been in
>>a similar situation and has some solutions, I'm all ears.
>>
>>Regards,
>>
>>gunner
>>
>>
>>
>>
>>
>
>
>