diff --git a/tools/script/delete_backup b/tools/script/delete_backup
new file mode 100644
index 0000000..05361cd
--- /dev/null
+++ b/tools/script/delete_backup
@@ -0,0 +1,20 @@
+MODDIR="${0%/*}"
+tools_path="$MODDIR/tools"
+bin_path="$tools_path/bin"
+script_path="$tools_path/script"
+[[ ! -d $tools_path ]] && echo "$tools_path目錄遺失" && exit 1
+[[ ! -d $script_path ]] && echo "$script_path目錄遺失" && exit 1
+. "$bin_path/bin.sh"
+find "$MODDIR" -maxdepth 2 -type d | sort | while read; do
+	if [[ -f $REPLY/app_details ]]; then
+		unset PackageName
+		. "$REPLY/app_details"
+		if [[ $PackageName != "" && $(pm path "$PackageName" | cut -f2 -d ':') = "" ]]; then
+			echoRgb "${REPLY##*/}不存在系統，刪除備份"
+			rm -rf "$REPLY"
+			if [[ ${REPLY%/*}/應用列表.txt ]]; then
+				cat "${REPLY%/*}/應用列表.txt" | sed -e "s/${REPLY##*/} $PackageName//g ; /^$/d" | sort >"${REPLY%/*}/應用列表.tmp" && mv "${REPLY%/*}/應用列表.tmp" "${REPLY%/*}/應用列表.txt"
+			fi
+		fi
+	fi
+done
\ No newline at end of file
diff --git a/tools/script/restore b/tools/script/restore
index 9a1ab4b..ed36355 100644
--- a/tools/script/restore
+++ b/tools/script/restore
@@ -19,7 +19,7 @@ txt="$MODDIR/應用列表.txt"
 [[ ! -f $txt ]] && echoRgb "請執行\"掃描資料夾名.sh\"獲取應用列表再來恢復" "0" && exit 2
 r="$(cat "$txt" | grep -v "#" | sed -e '/^$/d' | sed -n '$=')"
 [[ $r = "" ]] && echoRgb "應用列表.txt包名為空或是被注釋了" "0" && exit 1
-[[ $(restorecon --help 2>/dev/null) = "" ]] && echoRgb "restorecon命令不存在" "0" && exit 1
+[[ $(which restorecon) = "" ]] && echoRgb "restorecon命令不存在" "0" && exit 1
 #顯示執行結果
 Release_data() {
 	tar_path="$1"
diff --git a/tools/script/restore2 b/tools/script/restore2
index e5bf948..9d6ca8e 100644
--- a/tools/script/restore2
+++ b/tools/script/restore2
@@ -13,7 +13,7 @@ isBoolean "$Recovery_mode" && Recovery_mode="$nsx"
 path="/data/media/0/Android"
 path2="/data/data"
 [[ ! -d $path2 ]] && echoRgb "設備不存在user目錄" "0" && exit 1
-[[ $(restorecon --help 2>/dev/null) = "" ]] && echoRgb "restorecon命令不存在" "0" && exit 1
+[[ $(which restorecon) = "" ]] && echoRgb "restorecon命令不存在" "0" && exit 1
 #記錄開始時間
 starttime1="$(date -u "+%s")"
 {
diff --git a/備份應用.sh b/備份應用.sh
index f0a8d39..f047bd3 100644
--- a/備份應用.sh
+++ b/備份應用.sh
@@ -85,6 +85,7 @@ fi
 [[ ! -d $Backup/tools ]] && cp -r "$tools_path" "$Backup" && rm -rf "$Backup/tools/bin/zip" "$Backup/tools/script"
 [[ ! -f $Backup/還原備份.sh ]] && cp -r "$script_path/restore" "$Backup/還原備份.sh"
 [[ ! -f $Backup/掃描資料夾名.sh ]] && cp -r "$script_path/Get_DirName" "$Backup/掃描資料夾名.sh"
+[[ ! -f $MODDIR/刪除已卸載備份.sh ]] && cp -r "$script_path/delete_backup" "$MODDIR/刪除已卸載備份.sh"
 filesize="$(du -ks "$Backup" | awk '{print $1}')"
 #調用二進制
 Quantity=0