diff --git a/app/electron/main.js b/app/electron/main.js
index 747e0fc00..fbfe941cd 100644
--- a/app/electron/main.js
+++ b/app/electron/main.js
@@ -53,10 +53,8 @@ try {
   }
 } catch (e) {
   console.error(e)
-  require('electron').
-    dialog.
-    showErrorBox('创建配置目录失败 Failed to create config directory',
-      '思源需要在用户家目录下创建配置文件夹（~/.config/siyuan），请确保该路径具有写入权限。\n\nSiYuan needs to create a configuration folder (~/.config/siyuan) in the user\'s home directory. Please make sure that the path has write permissions.')
+  require('electron').dialog.showErrorBox('创建配置目录失败 Failed to create config directory',
+    '思源需要在用户家目录下创建配置文件夹（~/.config/siyuan），请确保该路径具有写入权限。\n\nSiYuan needs to create a configuration folder (~/.config/siyuan) in the user\'s home directory. Please make sure that the path has write permissions.')
   app.exit()
 }
 
@@ -889,6 +887,7 @@ app.on('before-quit', (event) => {
 })
 
 const {powerMonitor} = require('electron')
+const {write} = require("fs");
 
 powerMonitor.on('suspend', () => {
   writeLog('system suspend')
@@ -926,11 +925,11 @@ powerMonitor.on('resume', async () => {
     return
   }
 
-  writeLog('sync after system resume')
   workspaces.forEach(item => {
     const currentURL = new URL(item.browserWindow.getURL())
-    fetch(getServer(currentURL.port) + '/api/sync/performSync',
-      {method: 'POST'})
+    const server = getServer(currentURL.port)
+    writeLog('sync after system resume [' + server + '/api/sync/performSync' + ']')
+    fetch(server + '/api/sync/performSync', {method: 'POST'})
   })
 })
 
@@ -938,6 +937,6 @@ powerMonitor.on('shutdown', () => {
   writeLog('system shutdown')
   workspaces.forEach(item => {
     const currentURL = new URL(item.browserWindow.getURL())
-    fetch(getServer(currentURL.port)  + '/api/system/exit', {method: 'POST'})
+    fetch(getServer(currentURL.port) + '/api/system/exit', {method: 'POST'})
   })
 })
diff --git a/kernel/main.go b/kernel/main.go
index 69e3d6c9b..14f92c102 100644
--- a/kernel/main.go
+++ b/kernel/main.go
@@ -51,6 +51,7 @@ func main() {
 	go sql.AutoFlushTreeQueue()
 	go treenode.AutoFlushBlockTree()
 	go cache.LoadAssets()
+	go model.HookDesktopUIProc()
 	model.WatchAssets()
 	model.HandleSignal()
 }
diff --git a/kernel/model/conf.go b/kernel/model/conf.go
index 00c9a09dc..842f246a0 100644
--- a/kernel/model/conf.go
+++ b/kernel/model/conf.go
@@ -675,7 +675,6 @@ func clearWorkspaceTemp() {
 	os.RemoveAll(filepath.Join(util.TempDir, "import"))
 	os.RemoveAll(filepath.Join(util.TempDir, "repo"))
 	os.RemoveAll(filepath.Join(util.TempDir, "os"))
-	os.RemoveAll(filepath.Join(util.DataDir, "assets", ".siyuan", "assets.json"))
 
 	// 退出时自动删除超过 7 天的安装包 https://github.com/siyuan-note/siyuan/issues/6128
 	install := filepath.Join(util.TempDir, "install")
@@ -720,5 +719,10 @@ func clearWorkspaceTemp() {
 		}
 	}
 
+	// 老版本遗留文件清理
+	os.RemoveAll(filepath.Join(util.DataDir, "assets", ".siyuan", "assets.json"))
+	os.RemoveAll(filepath.Join(util.WorkspaceDir, "backup"))
+	os.RemoveAll(filepath.Join(util.WorkspaceDir, "sync"))
+
 	logging.LogInfof("cleared workspace temp")
 }
diff --git a/kernel/model/process.go b/kernel/model/process.go
index 7ce0f82e8..2e00c5e1d 100644
--- a/kernel/model/process.go
+++ b/kernel/model/process.go
@@ -19,9 +19,14 @@ package model
 import (
 	"os"
 	"os/signal"
+	"strconv"
+	"strings"
 	"syscall"
+	"time"
 
+	goPS "github.com/mitchellh/go-ps"
 	"github.com/siyuan-note/logging"
+	"github.com/siyuan-note/siyuan/kernel/util"
 )
 
 func HandleSignal() {
@@ -31,3 +36,46 @@ func HandleSignal() {
 	logging.LogInfof("received os signal [%s], exit kernel process now", s)
 	Close(false, 1)
 }
+
+func HookDesktopUIProc() {
+	if util.ContainerStd != util.Container || "dev" == util.Mode {
+		return
+	}
+
+	time.Sleep(30 * time.Second)
+	uiProcNames := []string{"siyuan", "electron"}
+	existUIProc := false
+	for range time.Tick(7 * time.Second) {
+		util.UIProcessIDs.Range(func(uiProcIDArg, _ interface{}) bool {
+			uiProcID, err := strconv.Atoi(uiProcIDArg.(string))
+			if nil != err {
+				logging.LogErrorf("invalid UI proc ID [%s]: %s", uiProcIDArg, err)
+				return true
+			}
+
+			proc, err := goPS.FindProcess(uiProcID)
+			if nil != err {
+				logging.LogErrorf("find UI proc [%d] failed: %s", uiProcID, err)
+				return true
+			}
+
+			if nil == proc {
+				return true
+			}
+
+			procName := strings.ToLower(proc.Executable())
+			for _, name := range uiProcNames {
+				if strings.Contains(procName, name) {
+					existUIProc = true
+					return false
+				}
+			}
+			return true
+		})
+
+		if !existUIProc {
+			logging.LogInfof("no active UI proc, exit kernel process now")
+			Close(false, 1)
+		}
+	}
+}