Vista - How to uninstall PowerShell 1.0 on Win XP?

Hi

I want to upgrade from PowerShell 1.0 to 2.0 CTP3 on my Win XP PC.

In 'Add/Remove Programs' PowerShell 1.0 wasn't listed so I clicked 'Show
Updates' and it appeared in the list. However, clicking Remove then gives the
message:

'An error occured while trying to remove Windows PowerShell(TM) 1.0. It may
have already been uninstalled. Would you like to remove Windows
PowerShell(TM) 1.0 from the Add or Remove programs list?'

PowerShell 1.0 is definitely installed (I can run it). What should I do?

BR

David

Hi DavidTM,

See if you can find the '$NtUninstallKB926139$' folder in Windows dir. If
so, run spuninst.exe (inside the spuninst folder).


---
Shay Levy
Windows PowerShell MVP
http://blogs.microsoft.co.il/blogs/ScriptFanatic
PowerShell Toolbar: http://tinyurl.com/PSToolbar



D> Hi
D>
D> I want to upgrade from PowerShell 1.0 to 2.0 CTP3 on my Win XP PC.
D>
D> In 'Add/Remove Programs' PowerShell 1.0 wasn't listed so I clicked
D> 'Show Updates' and it appeared in the list. However, clicking Remove
D> then gives the message:
D>
D> 'An error occured while trying to remove Windows PowerShell(TM) 1.0.
D> It may have already been uninstalled. Would you like to remove
D> Windows PowerShell(TM) 1.0 from the Add or Remove programs list?'
D>
D> PowerShell 1.0 is definitely installed (I can run it). What should I
D> do?
D>
D> BR
D>
D> David
D>

Hi Shay

'$NtUninstallKB926139$' is not present.

Can I get it from anywhere?

David

By what I've read, $NtUninstallKB926139$ probably got deleted when Win XP Sp2
was installed.

I'm not sure if it would be safe to copy the file from another PC (which
actually I don't have). What do you think?

Can I uninstall PowerShell 1.0 by hacking the registry instead?

Hi DavidTM,


That's probably the reason, can you rollback SP2?
For more information: http://blogs.msdn.com/powershell/arc...2-upgrade.aspx

---
Shay Levy
Windows PowerShell MVP
http://blogs.microsoft.co.il/blogs/ScriptFanatic
PowerShell Toolbar: http://tinyurl.com/PSToolbar



D> By what I've read, $NtUninstallKB926139$ probably got deleted when
D> Win XP Sp2 was installed.
D>
D> I'm not sure if it would be safe to copy the file from another PC
D> (which actually I don't have). What do you think?
D>
D> Can I uninstall PowerShell 1.0 by hacking the registry instead?
D>

Try the windows installer cleanup utility.

Keep us informed.

I can't rollback the update because updates are handled by our IT dept. The
'windows installer cleanup utility' failed to detect PowerShell 1.0.

So as a last resort I deleted registry key
"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Powershell\1"

I was then able to successfully install PowerShell 2.0 CTP3.

However, when I start PowerShell 2.0 I get lots of errors starting with:

=============================
Windows PowerShell
Copyright (C) 2006 Microsoft Corporation. All rights reserved.

Error loading the extended type data file:
Microsoft.PowerShell.Core,
C:\WINDOWS\system32\WindowsPowerShell\v1.0\types.ps1xml(141) : Error in type
"Deserialized.Sy
stem.Net.IPAddress": "TargetTypeForDeserialization" is not a standard member
and will be ignored
Microsoft.PowerShell.Core,
C:\WINDOWS\system32\WindowsPowerShell\v1.0\types.ps1xml(293) : Error in type
"System.Director
yServices.DirectoryEntry": Exception: Cannot convert
"Microsoft.PowerShell.AdapterCodeMethods" to "System.Type".
[snip]
=============================

Any ideas on what to do next please?

David

Sadly decided to revert to PowerShell 1.0. Hopefully the upgrade will be
easier when 2.0 Beta appears.

Thanks for your help,

David

Ironically your problems have nothing to do with the state of the 2.0 beta
as it appears something from 1.0 is screwed up already.

It sounds like when you installed 2.0, it was using 1.0's binaries from the
GAC. Now that you have 1.0 installed again, are you able to uninstall it?
While you can delete assemblies from the GAC manually, it's a huge pain in
the ass especially if they're put there by an installer.

"DavidTM" <DavidTM@xxxxxx> wrote in message
news:1EB47F4B-497B-4E5B-BF9C-3768A6C3FEE6@xxxxxx

I want to install Powershell v2 on an XP SP3 machine. It has previously had
v1 installed, which was never properly uninstalled. I have tried all the
solutions I can find to remove the old version. All the PS files and folders
have been deleted. Any reference to Powershell in the registry has been
deleted, but on trying to install v2 I stll get the message to remove
previous versions first. I guess it's looking for a registry key or keys
which tells it that PS is installed, finds it/them and stops the install.
I've tried looking at a registry trace with RegMon filtered to misiexec, but
there are still hundreds of successful reads & queries. I have saved the
RegMon trace.
Neither $NtUninstallKB926139$ nor $NtUninstallKB926141$ is present and I
can't roll back nor can I install v1, for the same reason as above.

"Shay Levy [MVP]" wrote: