Howto: Uninstall Powershell 1.0 February 16, 2008
Posted by Mayank in powershell.Tags: powershell, powershell 1.0
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When you try to install Powershell 2.0, you are prompted to uninstall other versions of Powershells before going ahead with the installation. But neither does powershell appear in Add/Remove programs nor is there an uninstall shortcut in the programs menu.
To uninstall powershell 1.0 run add/remove programs (appwiz.cpl from Win+R) and click the “show updates” checkbox. Powershell will now be shown. It can be removed by clicking on remove 
.
Enjoyyy!!!
Been there done that but what if it doesn’t show?
Any ideas?
did you install powershell using the installer?
I just wonder how to uninstall powershell 1.0
Thanks ^^
http://www.myitforum.com/articles/40/view.asp?id=10041
VBS Script:
Set objShell = CreateObject(“WScript.Shell”)
objShell.Run “C:\Windows\$NtUninstallKB926139$\spuninst\spuninst.exe”
WScript.Quit
Thank you!
The posting doesn’t say it but it shows up in “Windows XP – Software Updates”, probably down near the bottom of the updates. I was looking just under “P” for Powershell or “Windows Powershell” but it’s under Windows XP just FYI.
The entry for PowerShell is displayed as “Hotfix for Windows Server 2003 (KB926139)” in Windows 2003 Server. It should be something very similar in other OS too.
Thanks, confused the hell out of me till I saw this.
Bill L.
Ok so it depends on the uninstall files under c:\windows. So how do you uninstall it then if you’ve deleted the uninstall files to recover some disk space??
Just to answer my own question – I managed to uninstall it by installing it to another PC, copying the C:\Windows\$NtUninstallKB926139$ to the problem PC, then running C:\Windows\$NtUninstallKB926139$\spuninst\spuninst.exe.
I’m so lazy to choice the exact item in prolixity items, so just done with below command:
%windir%\\$NtUninstallKB926139$\spuninst\spuninst.exe /quiet /passive
No responses at final.
Thanks! That helped.
THANKS!!!!
Thanks! (Found via Google “uninstall powershell”)
Wullshit!!!
It’s gone from Install menu but is still active on HDD. in system32\Powershell
It just wont leave… Just like Search Assistant.
On Windows 2008, remove the feature from Server Manager\Features\Remove Features , select Windows PoweShell 1.0
After this you may install Windows PowerShell 2.0
-DB
Thank you, found this via Google too.
I tried to uninstall version 1 (thanks for the above tip), but it said it showed a list of programs that could be impacted, and I am afraid to risk it.
I am wanting to install a later version because many of the examples that I find fail for me with syntax errors, etc.
hallo!
Thanks too. found this via Google too.
comment 9 from Michael – worked great..thank you
Thanks!!!
Thank you.
I’d like to note that you can also get around this by deleting the registry key for PowerShell under:
HKLM\software\microsoft\powershell
Just delete that PowerShell key and it should install fine (back it up first of course).
@lizaoreo
thank you very much for this tip!
This is really hard to find, since there are hundreds of entries under “Windows updates”, none of them sorted alphabetically, really poor
@fritz
No prob
@Jo
Yeah, that was my problem. It turns out it wasn’t there, the uninstall information had been deleted. That’s why I ended up killing the registry entry.
why I am unable to install Windows6.0-KB968930-x86.msu – I am using Vista
It said: “The updates does not apply to your system” Please help..
why I am unable to install Windows6.0-KB968930-x86.msu – I am using Vista
It said: “The updates does not apply to your system” Please help..
I have the version 1, but I have uninstalled it in order to let the version 2 to be installed
Windows XP
Click Start, click Run, type appwiz.cpl, and then click OK.
Click to select the Show updates check box.
In the Currently installed programs and updates list, click Windows PowerShell(TM) 1.0, and then click Remove.
Follow the instructions to uninstall Windows PowerShell 1.0.
How to uninstall Windows PowerShell 1.0
To uninstall Windows PowerShell 1.0, follow the steps that are appropriate to your operating system.
Windows Vista
Click Start, type appwiz.cpl in the Start Search box, and then press ENTER.
In the list of tasks, click View Installed Updates.
In the Uninstall an update list, right-click Windows PowerShell(TM) 1.0 (KB928439), and then click Uninstall.
Follow the instructions to uninstall Windows PowerShell 1.0.
Note If you disable Windows PowerShell by using the Turn Windows Features on or off option, this does not satisfy the Compatibility Check process. You must uninstall Windows PowerShell.
Windows Server 2003
Click Start, click Run, type appwiz.cpl, and then click OK.
Click to select the Show updates check box.
In the Currently installed programs and updates list, find the entry for the hotfix that installed Windows PowerShell 1.0. Depending on the installation package that was used, this entry resembles one of the following:
Hotfix for Windows Server 2003 (KB926139)
Hotfix for Windows Server 2003 (KB926140)
Hotfix for Windows Server 2003 (KB926141)
Click the Windows PowerShell hotfix entry, and then click Remove.
Follow the instructions to uninstall the hotfix for Windows PowerShell 1.0.
Note By default, if Windows Server 2003 Service Pack 2 is installed on the system, PowerShell 1.0 cannot be uninstalled. To resolve this issue, follow these steps:
Follow the steps in the following Microsoft Knowledge Base (KB) article, 931941, to trust Windows PowerShell 1.0 that was introduced in KB926139:
931941 (http://support.microsoft.com/kb/931941/ ) The Oobmig.exe tool is available to restore trust to out-of-band updates after you install Windows Server 2003 Service Pack 2
Note You may have to restart the computer.
Check whether the update can be uninstalled by using Control Panel. If the update cannot be uninstalled in this manner, uninstall PowerShell manually from the following location:
C:\WINNT\$NtUninstallKB926139$\spuninst\spuninst.exe
Note You may have to restart the computer.
Windows XP
Click Start, click Run, type appwiz.cpl, and then click OK.
Click to select the Show updates check box.
In the Currently installed programs and updates list, click Windows PowerShell(TM) 1.0, and then click Remove.
Follow the instructions to uninstall Windows PowerShell 1.0.
I have managed to remove it and installed version 2!
Here is the guide if any of you interested:
http://ali-portfolio.com/blog/?p=20
Thanks
Ahhhhh ha! The one thing that NOBODY else had in their forum about uninstalling Windows Powershell is you have to click on updates after you open your programs for uninstall. BINGOOO!!!!!! Thank you thank you thank you!
i HAVE POwershell downloaded, and followed TEC commodoties instructions, however, now I dont see it there? Is this strange.. it still shows as a program on my computer!
@Wanda Have you tried what I did by removing the registry entries? When I went in to uninstall it, it wouldn’t show up, after killing the reg entries for v1 it installed v2 no prob.
Lizaoreo method works
but is better to install and then suddenly to remove PS 1 before to install PS 2
Greetings, there happened the same and what they have to do is something very simple is to uninstall the Windows Update Core Management Framework, which appears after upgrading to Windows Server 2003 SP2 and R2
None of these suggestions worked for me.
What did work is so simple you probably wouldn’t think of it:
Navigate to:
C:\Windows\System32\WindowsPowerSell\
Delete the whole WindowsPowerShell folder. (If you’re the cautious type, back it up somewhere first just in case).
Server 2008 compatibility check passed after that.