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Im trying to install powershell 3.0 on my Win7 64 bit pc, but I get the error "the update is not applicable to your computer."

After googling the error, all the solutions I see are that you need to install .net 4 full profile.

However, .net 4 wont install, as I have .net 4.5 installed. I did a repair on .net 4.5 to see if that would help, but it didnt.

Anyone know of a solution? Im wondering if I have to uninstall .net 4.5 and 4 and reinstall them.

Update: I uninstalled .NET 4.5 and 4 and reinstalled the 4.0 full profile - no luck I double checked I had the correct version for Win 7 64 bit - I do...

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How can we help you if you don't provide the installation error codes? – Ramhound Jan 25 at 17:59
there are no error codes, as there are no errors other than "the update is not applicable." – Keltari Jan 25 at 18:07
.NET Framework 4.5 is an in-place replacement for .NET Framework. So having .NET Framework 4.5 is NOT the reason this installer is failing. Are you saying that the installer doesn't even start AT ALL? – Ramhound Jan 25 at 18:08
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The logical solution would be to get rid of .NET Framework 4.5 replace it with .NET Framework 4.0 then see if Powershell 3.0 would install. At that point you could install .NET Framework 4.5 and verify thats indeed the reason the installer wasn't working. I don't meant to sound short by when I am able to find tons of information on how to solve this problem, it makes it look like, you didn't research the problem before you asked for help. You should read technet.microsoft.com/en-us/library/hh847837.aspx and technet.microsoft.com/en-us/library/hh847769.aspx – Ramhound Jan 25 at 18:48
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If you don't answer my important questions I can't help. – Ramhound Jan 25 at 20:57
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3 Answers

up vote 1 down vote accepted

I finally got Powershell 3 to install! This was a complete PITA.

To be honest, Ive tried so many things and got so many errors, Im not entirely sure what did the trick exactly. I dont know if all the steps were necessary, but in the end it ended up working.

  • Uninstalled .NET 4.5
  • Uninstalled .NET 4
  • Uninstalled any other .NET related applications such as SDKs and some other things
  • rebooted
  • Installed .NET 4 Full client profile for Win 7 64 bit
  • Installed patches to .NET 4
  • rebooted
  • extracted the .CAB files from the installer for Powershell 3 for Win 7 64 bit
  • ran pkmgr on the extracted .CAB file (I dont think this helped, I know it failed in many attempts while trying to get it working)
  • ran wusa.exe on the extracted .CAB file (I think this is what did it in the end) got a reboot notification
  • rebooted
  • ran a get-host in powershell and it returned version 3. (woohoo!)
  • reinstalled .NET 4.5
  • installed patches for .NET 4.5 rebooted
  • ran a get-host in powershell and it still worked returned version 3 (phew)
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+100

Check you don't have a pre-release version installed. If so, uninstall it first then try again.

Alternatively, if you're absolutely sure you have all the pre-requisites in place, there is a possible workaround:

Unpack the EXE as if it were a ZIP file (I used 7-zip), open CMD in the same directory, then run the following substituting the name of your extracted CAB file:

start /w %SystemRoot%\system32\pkgmgr.exe /ip /m:Windows6.1-KB2506143-x86.cab

Wait until prompted to reboot, then reboot.

Source: Microsoft Connect - Quote was posted as a workaround and has been edited slightly to improve grammar

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I gave it a shot, seemed promising, but eventually errored out with "can not find specified file" ] – Keltari Feb 4 at 22:16
up vote 0 down vote

Whenever I get this error it's because I accidentally downloaded the wrong version, since I'm on x64 also I d/l the x86 version or ia64 version by accident. Could that be the case? simplest things first I suppose :-)

UPDATE Due To More Information

Also, MS says .net 4.5 works fine, so no problem there http://technet.microsoft.com/en-us/library/hh847837.aspx

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double and triple checked I have the right version... I do. – Keltari Feb 4 at 22:14

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