diff --git a/GhidraDocs/GettingStarted.md b/GhidraDocs/GettingStarted.md
index 5c1bd62fe2..3b0bdd6d53 100644
--- a/GhidraDocs/GettingStarted.md
+++ b/GhidraDocs/GettingStarted.md
@@ -66,6 +66,8 @@ a specific need.
 To install Ghidra, simply extract the Ghidra distribution file to the desired filesystem destination
 using any unzip program (built-in OS utilities, 7-Zip, WinZip, WinRAR, etc).
 
+__NOTE:__ Do not extract Ghidra on top of an existing installation.
+
 ### Installation Notes
 * Ghidra does not use a traditional installer program.  Instead, the Ghidra distribution file is
   simply extracted in-place on the filesystem.  This approach has advantages and disadvantages. On 
diff --git a/README.md b/README.md
index 271f93164d..2a366b6802 100644
--- a/README.md
+++ b/README.md
@@ -33,6 +33,7 @@ To install an official pre-built multi-platform Ghidra release:
     `ghidra_<version>_<release>_<date>.zip` which can be found under the "Assets" drop-down.
     Downloading either of the files named "Source Code" is not correct for this step.
 * Extract the Ghidra release file
+  - **NOTE:** Do not extract on top of an existing installation
 * Launch Ghidra: `./ghidraRun` (`ghidraRun.bat` for Windows)
   - or launch [PyGhidra][pyghidra]: `./support/pyGhidraRun` (`support\pyGhidraRun.bat` for Windows)