On one fine day when I was busy with one of my project, one of my collegue tapped my shoulder, a bit panicking. He : Heiry, take a look at this... Me : Dude, what on earth have you done? (serious face) He : I dont know man, I uninstalled .Net Fx 4.5, reboot the machine and this happened Me : Dude, What on earth was the reason you uninstalled .Net Fx 4.5? He : Well, I thought .... Me : (Evil Smile) So here is the thing. When we uninstalling .Net Fx 4.5, those related features would be uninstalled as well, including a feature called User Interfaces and Infrastructure. Please refer to  here . There are 2 ways to get it done - locally or remotely. For the purpose of this post, I will do it remotely from another Windows Server 2012 member server. Issues : Unable to view GUI in Server 2012. Troubleshooting : it is straight forward, GUI is disabled, RDP to the server, the only screen one can see is : Resolution :  RDP to another Serv

I am using Windows Server 2012 for my XenDesktop 7 lab test. During the installation of SQL server, it prompted an error, asking for .Net 3.5 Framework to be turned on. I tried to enable it, but failed. Thinking and thinking, until I realized what was the issue Issues : Received below error while trying to enabling .Net 3.5 Framework feature in Windows Server 2012. Error : Installation of one or more roles. role services, or features failed. The source files could not be found. Try installing the roles, role services, or features again in a new Add Roles and Features Wizard session, and on the confirmation page of the wizard, click "Specify an alternate source path" to specify a valid location of the source files that are required for the installation. The location must be accessible by the computer account of the destination server. Troubleshooting  It turns out that to enable the feature, the source is needed. In this case, it will grab the source from int