diff --git a/install-lazygit.ps1 b/install-lazygit.ps1
index 096bdbb..33d4d76 100644
--- a/install-lazygit.ps1
+++ b/install-lazygit.ps1
@@ -308,7 +308,12 @@ function Install-Lazygit {
 
         $destPath = Join-Path $InstallDir "lazygit.exe"
         Write-Info "Installing: $destPath"
-        Copy-Item -Path $lazygitExe.FullName -Destination $destPath -Force
+
+        try {
+            Copy-Item -Path $lazygitExe.FullName -Destination $destPath -Force
+        } catch {
+            Write-Err "lazygit.exe is currently running. Please close lazygit and run this script again."
+        }
 
         Write-Success "Installation complete!"