# Windows Server Appfabric: Installation error SharePoint 2016

- Link: https://sharepointtechnicalsupport.com/2016/11/16/windows-server-appfabric-installation-error-sharepoint-2016/
- Published: 2016-11-16T03:41:49+05:30
- Author: Deviprasad Panda

If you are installing SharePoint 2016 Prerequisites [manually downloading](https://sharepointtechnicalsupport.com/2016/11/10/unable-to-install-microsoft-information-protection-and-control-client-2-1/)
the files and after that run the “**Install Software Prerequisites**” from SharePoint
2016 installation file to verify everything installed manually is correct, you may
face error like this **“Windows Server Appfabric: Installation error“.** ⌊sp2016⌉

This is a generic MSI error message and does not give any indication about how to
get the issue fixed. Uninstall or reinstalling only makes it worse.

### **Resolution :**

The reason being the prerequisites installs the file and configure it automatically.
If we install manually, then we are trying to bypass the configuration, so that 
error will be received. The issue can be caused due to the following: *  The path
to the PowerShell executable that is needed for the AppFabric installation is incorrect.*
In some scenarios, repeated uninstallation and re-installation does not fix the 
issue. This is because the installer does not remove the PSModulePath entry in Environment*
Variables during uninstallation and the installation fails because the entry already
exists. If you are trying to install all the prerequisites manually as the server
does not have a connection to internet. **_Note:_** **_ Appfabric installation and
configuration has to be done by the prerequisite installer ONLY and not in a stand-
alone manner.You should follow the manual process of installation  if there is error
in automatic process by following Install Prerequisite (prerequisiteinstaller.exe)._**
You can implement any one of the two solutions listed below **Solution 1** Append
the following path to **PSModulePath** entry in the environment variables – **%SYSTEMROOT%\
System32\WindowsPowerShell\v1.0**

 * Go to **My Computer**, right-click **Properties**
 * On the **System page** click **Advanced System Settings** on the left-side pane.
 * If you receive a UAC prompt, click on **Yes** to launch the **System Properties**
   dialog box
 * From the **Advanced** tab, click **Environment Variables**
 * Within the **System Variables** section in the lower half, select **PSModulePath**
   and click on **Edit** (or double-click **PSModulePath**‘)
 * Append the following path to **PSModulePath** entry in the environment variables**%
   SYSTEMROOT%\System32\WindowsPowerShell\v1.0\**
 * Ensure that the PSModulePath entry looks like this: **C:\Windows\system32\WindowsPowerShell\
   v1.0\Modules\;c:\Program Files\AppFabric 1.1 for Windows Server\PowershellModules**

**Solution 2**

 * There are chances that other applications might be referencing the same variable
   and may fail if it is deleted. This is what we can do if solution 1 does not 
   help.
 * Remove the **PSModulePath** entry from the ‘Environment Variables’ and re-run
   the installer. Once it completes successfully, ensure that the **PSModulePath**
   entry looks the same as mentioned in solution 1.

Reference : [https://msdn.microsoft.com/en-us/library/dd878326(v=vs.85).aspx](https://msdn.microsoft.com/en-us/library/dd878326(v=vs.85).aspx)

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