diff --git a/winiso/deploy.fish b/winiso/deploy.fish
index 8f4c714e..997cce3b 100755
--- a/winiso/deploy.fish
+++ b/winiso/deploy.fish
@@ -4,6 +4,7 @@ begin
     set -l $varName
     set -l dir (status dirname)
     source "$dir/lib/choose-disk.fish"
+    source "$dir/lib/confirm.fish"
     set $varName (bash -c ". $(string escape $dir)/.env; echo \$$varName" 2> /dev/null)
 
     [ ! -z "$$varName" ]
@@ -251,6 +252,12 @@ begin
             chooseDisk WIN_DISK
         end
 
+        echo "Proceeding will cause the disk `$WIN_DISK` to be wiped."
+
+        if ! confirm "Are you sure you want to continue?" "n"
+            exit 1
+        end
+
         sudo shred -vfzn 0 -s 512 "$WIN_DISK"
 
         begin
diff --git a/winiso/lib/confirm.fish b/winiso/lib/confirm.fish
new file mode 100755
index 00000000..f83f5de4
--- /dev/null
+++ b/winiso/lib/confirm.fish
@@ -0,0 +1,4 @@
+#!/bin/env fish
+function confirm -a message default
+    fish "$(status dirname)/../../lib/modules/partition/confirm.fish" $argv
+end