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Cannot install .NET 3.5 on Windows Server 2012

Posted on 2014-10-10
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Trying to install .NET 3.5 on Win Server 2012 but getting error that source files cannot be found

I've searched the web and tried all the suggestions but I still get the same error

I've tried using the GUI and pointing to the /sources/sxs folder on the CD

Tried using cmd prompt:
dism /online /enable-feature /featurename:NETFX3 /all

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but just get the same error every time

help :(
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Question by:BrianFord
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by:becraig
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From a previously answered question:
Try this command from CMD

dism /online /enable-feature /featurename:NetFX3 /all /Source:d:\sources\sxs /LimitAccess
insert OS disk
Go down to “Specify an alternate source path” and enter “d:\sources\sxs” as the path.
full article here
http://www.danielclasson.com/install-net-framework-35-server-2012/

http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/Windows_Server_2012/Q_28343777.html
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by:Seth Simmons
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you could also try powershell

Install-WindowsFeature Net-Framework-Core -source D:\Sources\SxS
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by:BrianFord
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tried all that :(

same error
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by:Vaseem Mohammed
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Do you have windows 2012 DVD in CD-ROM when you run the command?
Use a different copy of media or extract SXS folder from ISO and copy it to the server, then point the location to the copied SXS folder.
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by:BrianFord
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Ok so I tried the powershell option - same error
then tried copying the sources folder directly to the root 'C:\sources\sxs' - same problem :(

The media I have is actually an ISO file mounted to the DVD drive of the server which is virtual, if that makes any difference?

Regardless of which method I try, the install gets to about 68% then fails
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Vaseem Mohammed earned 500 total points
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by:Seth Simmons
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shouldn't make a difference using a mounted iso

is this 2012 and not R2?  in other words, does the media match - 2012 using 2012 iso and not an R2 iso?
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by:BrianFord
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Running Windows Update did the trick

thank you
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by:Seth Simmons
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that article (and related updates) are for 2012 R2
are you running R2?
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