5. Uninstall HDP on All Nodes

At each cluster node, uninstall HDP for Windows using either of the following methods:

From the Command line: If you have the HDP 2.3.0 MSI installer (hdp-2.3.0.0.winpkg.msi), you can uninstall HDP from the command prompt. At each node in the cluster, open the command prompt as an administrator and enter:
```
msiexec /lv hdp_uninstall.log /qb /x c:\MSI_INSTALLER\hdp-2.3.0.0-GA.winpkg.msi HDP_DIR=c:\hdp DESTROY_DATA=no
            
```
From the Control Panel: Open Programs and Features, right-click on Horton Works Data Platform for Windows and select Uninstall.
The uninstall option keeps existing data in place, maintaining the data directories for HDFS and MapReduce.