Issue

Windows Server 2008R2 fails to install KB2999226 (Internet Explorer 11) update with error 9C48. IE11 is already present on the system and seems to be functioning fine. All other updates install with no issues.

Windows system logs record Event ID 20 Error:

Installation Failure: Windows failed to install the following update with error 0x80070643: Internet Explorer 11 for Windows Server 2008 R2 for x64-based Systems.

Read more: Windows update 9C48 error installing IE11 (KB2999226)

Issue

Backup Exec pre-install environment check reports following error:

Failed.
The Windows Server service vas not started. Start this service before continuing with the installation of Backup Exec.

The server service is, in fact, running and set to start automatically.

Read more: Backup Exec pre-install environment check fails - The windows server service was not started

Cannot move a virtual machine from one Windows Server 2016 Hyper-V host to another. The move fails at the very beginning with the following error:

The virtual machine cannot be moved to the destination computer. The hardware on the destination computer is not compatible with the hardware requirements of this virtual machine.
Virtual machine migration operation failed at migration destination. The virtual machine is using processor-specific features not supported on physical computer <computer-name>.

Read more: Hyper-V: The virtual machine cannot be moved (processor-specific features)

Adobe now distributes Adobe Reader updates as .msp files which makes it somewhat more difficult to deploy via Group Policy.

Below instructions show how to merge .msi and .msp files so that the application could be deployed via Group Policy. This example is for Adobe Acrobat Reader DC, but the same process should work for other software as well.

Note: Adobe Acrobat Reader cannot be already installed on a machine where the bellow process is performed.

Read more: Merge Adobe Acrobat Reader .msi and .msp files for GPO deployment