This answer combines information from multiple answers and also adds some extra steps not previously mentioned. I managed to do it in the following way: • Download the ISO image for Windows Server 2012 R2 (Note! Has to be R2) from.

Install Net Framework 3.5 SP1 Offline on Server 2012 R2. Download the ISO image for Windows Server 2012 R2 from. NetFX3 feature should be installed after. Install from Windows 8 installation. NetFX3 /All /Source:C: Windows WinSxS /LimitAccess' If not you can also point. Install.NET 4.0 offline on Windows 8.

It needs a windows live id registration and you need to agree to follow-up emails. • Once you've downloaded it to some location, transfer to the machine/VM you wish to install it to.

• Copy it to another location within the target machine. This is to prevent 'sorry, there was a problem mounting the file' error as described, which relates to some transfer managers writing the file as sparse files. If you actually copied it already during the transfer in the previous step and not just mapped it, this step might not be needed: for me it was. • Right click the file in explorer and select 'Mount'. It should be mounted, I'm assuming to D: drive.

If you get an error, revert to previous link. • Open cmd prompt as administrator and run the following commands (switches are explained in ):. Dism.exe /online /all /enable-feature /featurename:NetFX3ServerFeatures /Source:d: sources sxs /LimitAccess dism.exe /online /all /enable-feature /featurename:NetFX3 /Source:d: sources sxs /LimitAccess Both seem to be needed and in the order I've given. () If you get an error 'source files not found', reconfirm you have R2 image in use.

Chave Serial Driverdoc Windows there. That was the problem for me - the actual.NET 3.5 was missing from my image, which was plain 2012. If both commands are successful, congratulations! You now have it installed. Tp Link Wifi Password Generator. In case you're in doubt, you can confirm the version using steps.

Here's how i did it. Download the ISO image for Windows Server 2012 R2 from. Put that Disc image on the computer that needs.Net Framwork 3.5 Right Click on the file and mount. This should create a D drive.

Go to Server Manager, click Manage >Add roles and Features. Click through to the Features selection and choose the.Net Framework 3.5 entry. Keep clicking Next until you get to the final page. Don't click Install yet- Click the small link at the bottom to 'Specify Alternate Data Source.' Change the path to be D: Sources SxS Then install. If mounting a still fails, We determined a minor tweak to Eis's SUPERB INSTRUCTIONS March 19th/2016 was the last inch for success.

Downloading and mounting 2012 Server R2 install ISO is key, but we had to switch to the mounted drive letter sources directory and load the NEWER R2 v9600 version of the DISM executable. Just mounting the ISO and specifying the /source location failed to complete or even initiate any progress of installation since Windows was using the version 9200 of DISM that apparently hates the /source switch but only reported as much inside the%systemroot% Logs DISM dism.log. The error explicitly described /sources as and UNKNOWN switch and thus was doomed to silent failure without properly mounting the R2 source ISO. It was necessary to hard specify the newer version of DISM.exe 9600 inside the mounted ISO by changing directories to the mounted ISO path of dism.exe. Cd /d d: sources &&. Dism.exe /online /enable-feature featurename:NetFX3ServerFeatures **/Source**:d: sources sxs /LimitAccess cd /d d: sources &&.

Dism.exe /online /enable-feature /featurename:NetFX3 **/Source**:d: sources sxs /LimitAccess The command processor output will immediately specify whether you're executing the required version of dism.exe *Deployment Image Servicing and Management tool **Version: 6.3.9600.17031** Image Version: 6.2.9200.16384 Enabling feature(s) [==========================100.0%==========================] The operation completed successfully. Restart Windows to complete this operation. Do you want to restart the computer now?

(Y/N) n* This was executed on a freshly turned up 2012 Server with only the Windows Update Agent v2 installed: Windows Update Agent 7.8.9200.16927 Windows Update Agent 7.8.9200.16924 Windows Update Agent 7.8.9200.16927 Installation date: ‎ 1304PM Installation status: Succeeded Windows Update Agent 7.8.9200.16927 Installation date: ‎ 1304PM Installation status: Succeeded.