diff --git a/scripts/getdate.sh b/scripts/getdate.sh
index 62b4d8a7e..b3a741107 100644
--- a/scripts/getdate.sh
+++ b/scripts/getdate.sh
@@ -930,7 +930,6 @@ getcore(){ #下载内核文件
 			else
 				tar -zcf ${BINDIR}/CrashCore.tar.gz ${tar_para} -C ${TMPDIR} CrashCore
 			fi
-			rm -rf ${TMPDIR}/CrashCore.tar.gz #小闪存模式清理文件优化内存占用
 			setconfig crashcore $crashcore
 			setconfig core_v $core_v
 			setconfig custcorelink $custcorelink
diff --git a/scripts/init.sh b/scripts/init.sh
index c25a572e8..2148c1106 100644
--- a/scripts/init.sh
+++ b/scripts/init.sh
@@ -160,6 +160,7 @@ else
 	[ -w /etc/systemd/system ] && sysdir=/etc/systemd/system
 	if [ -n "$sysdir" -a "$USER" = "root" -a "$(cat /proc/1/comm)" = "systemd" ];then
 		#创建shellcrash用户
+		ckcmd userdel && userdel shellcrash 2>/dev/null
 		sed -i '/0:7890/d' /etc/passwd
 		sed -i '/x:7890/d' /etc/group
 		if type useradd >/dev/null 2>&1; then
@@ -173,9 +174,10 @@ else
 		sed -i "s%/etc/ShellCrash%$CRASHDIR%g" $sysdir/shellcrash.service
 		rm -rf $sysdir/clash.service #旧版文件清理
 		systemctl daemon-reload
-	fi
+	else
 		#设为保守模式启动
 		setconfig start_old 已开启
+	fi
 fi
 #修饰文件及版本号
 command -v bash >/dev/null 2>&1 && shtype=bash || shtype=sh 
diff --git a/scripts/menu.sh b/scripts/menu.sh
index a28a780c2..547364796 100644
--- a/scripts/menu.sh
+++ b/scripts/menu.sh
@@ -990,11 +990,13 @@ setboot(){ #启动相关设置
 	2)
 		if [ "$start_old" = "未开启" ] > /dev/null 2>&1; then 
 			echo -e "\033[33m改为使用保守模式启动服务！！\033[0m"
+			[ -d /etc/rc.d ] && cd /etc/rc.d && rm -rf *shellcrash > /dev/null 2>&1 && cd - >/dev/null
+			ckcmd systemctl && systemctl disable shellcrash.service > /dev/null 2>&1
 			start_old=已开启
 			setconfig start_old $start_old
 			${CRASHDIR}/start.sh stop
 		else
-			if [ -n "$(pidof procd)" -o -w /etc/systemd/system -o -w /usr/lib/systemd/system ];then
+			if [ "$(cat /proc/1/comm)" = "procd" -o "$(cat /proc/1/comm)" = "systemd" ];then
 				echo -e "\033[32m改为使用系统守护进程启动服务！！\033[0m"
 				${CRASHDIR}/start.sh cronset "ShellCrash初始化"
 				start_old=未开启
diff --git a/scripts/start.sh b/scripts/start.sh
index e2264a08d..ef2877cb5 100644
--- a/scripts/start.sh
+++ b/scripts/start.sh
@@ -1536,7 +1536,6 @@ core_check(){ #检查及下载内核文件
 			else
 				mv -f ${TMPDIR}/core_new ${TMPDIR}/CrashCore
 				mv -f ${TMPDIR}/CrashCore.tar.gz ${BINDIR}/CrashCore.tar.gz
-				rm -rf ${TMPDIR}/CrashCore.tar.gz #小闪存模式清理文件优化内存占用
 				setconfig COMMAND "$COMMAND" ${CRASHDIR}/configs/command.env && source ${CRASHDIR}/configs/command.env
 				setconfig crashcore $crashcore
 				setconfig core_v $core_v
@@ -1637,6 +1636,7 @@ bfstart(){ #启动前
 	#添加shellcrash用户
 	[ -n "$(echo $local_type | grep '增强模式')" -o "$(cat /proc/1/comm)" = "systemd" ] && \
 	[ -z "$(id shellcrash 2>/dev/null | grep 'root')" ] && {
+		ckcmd userdel && userdel shellcrash 2>/dev/null
 		sed -i '/0:7890/d' /etc/passwd
 		sed -i '/x:7890/d' /etc/group
 		if ckcmd useradd; then
@@ -1672,6 +1672,7 @@ afstart(){ #启动后
 		i=$((i+1))
 	done
 	if [ -n "$test" -o -n "$(pidof CrashCore)" ];then
+		rm -rf ${TMPDIR}/CrashCore #删除缓存目录内核文件
 		#设置DNS转发
 		start_dns(){
 			[ "$dns_mod" != "fake-ip" ] && [ "$cn_ip_route" = "已开启" ] && cn_ip_route