diff --git a/build/win/installer.nsh b/build/win/installer.nsh
index 6f054a26..48d68816 100644
--- a/build/win/installer.nsh
+++ b/build/win/installer.nsh
@@ -21,3 +21,8 @@
 !macro customInstallMode
   StrCpy $isForceCurrentInstall "1"
 !macroend
+
+!macro customInit
+  IfFileExists $LOCALAPPDATA\Hyper\Update.exe 0 +2
+  nsExec::Exec '"$LOCALAPPDATA\Hyper\Update.exe" --uninstall -s'
+!macroend
\ No newline at end of file