diff --git a/scripts/win-post-backup b/scripts/win-post-backup
index 8244aa3..2cc83de 100644
--- a/scripts/win-post-backup
+++ b/scripts/win-post-backup
@@ -9,8 +9,8 @@ if [ ! -z $3 ]; then
     PASS=$3
 fi
 
-# Timeout after 5 minutes
-TIMEOUT=300
+# Timeout after 15 minutes
+TIMEOUT=900
 
 BOX=$1
 
diff --git a/scripts/win-pre-backup b/scripts/win-pre-backup
index 52ff442..a5272e6 100644
--- a/scripts/win-pre-backup
+++ b/scripts/win-pre-backup
@@ -7,8 +7,8 @@ if [ ! -z $3 ]; then
     PASS=$3
 fi
 
-# Timeout after 5 minutes
-TIMEOUT=300
+# Timeout after 15 minutes
+TIMEOUT=900
 
 BOX=$1