Server 2008r2 x 64 won't install .net 4.5

Need to install .net 4.5 get the following error:  "The .NET Framework 4.5 is not supported on this operating system.
GSLElectricAsked:
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Thomas GrassiConnect With a Mentor Systems AdministratorCommented:
Where did you get it from?

It came as a Microsoft update two days ago.
I use WSUS and it pulled the update down and was applied to my 2008 server windows 7 computer and my vista computer all of which installed and worked.
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GSLElectricAuthor Commented:
I know that it should install.  it has 4.0 on it.
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Thomas GrassiSystems AdministratorCommented:
I just installed it on my 2008 R2 x64 bit server no problem.

Were did you get this update from?

Are you sure you have the correct update for your system?

They are different for 64 bit systems
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MaheshArchitectCommented:
its not supported on windows 2008 R2 Itanium version

Please confirm ur OS

Mahesh
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Dirk MareSystems Engineer (Acting IT Manager)Commented:
You can also try to get it installed via windows updates.. Select the check online option..
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GSLElectricAuthor Commented:
It is not Itanium version.
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GSLElectricAuthor Commented:
because It is required it doesn't come as an update
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Dirk MareSystems Engineer (Acting IT Manager)Commented:
Apologies I miss read your question as I saw 4.5.1

Do you have service pack 1 installed on your server?

Sp1 is also a requirement for 4.5
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Joseph NyaemaIT ConsultantCommented:
Suspect your server doesn't meet the prerequisites.
You must install Windows 2008 R2 SP1 before you can install .Net Framework 4.5.
Make sure you have downloaded and installed SP1 from http://www.microsoft.com/en-us/download/details.aspx?id=5842 or apply from your WSUS.
Probably better to download and install it manually.

http://www.microsoft.com/en-us/download/details.aspx?id=30653

Downloading and installing it manually so you can interactively deal with the error messages as they pop up.
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pgm554Commented:
There's a major issue with the last patch Tuesday and .net installs failing(among the 3 or 4 other bad patches they pushed out).

I would wait and see what their fix is.
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Dirk MareSystems Engineer (Acting IT Manager)Commented:
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