diff --git a/app/appearance/langs/en_US.json b/app/appearance/langs/en_US.json
index ba391aede..3c11ff84f 100644
--- a/app/appearance/langs/en_US.json
+++ b/app/appearance/langs/en_US.json
@@ -995,7 +995,7 @@
     "105": "Corrupted data repo have been automatically reset",
     "106": "Maximum length is limited to 512 characters",
     "107": "Moving document [%s]",
-    "108": "Rebuild index complete",
+    "108": "TODO",
     "109": "Remove reminder completed [%s]",
     "110": "Renaming...",
     "111": "Saving document [%s]...",
diff --git a/app/appearance/langs/es_ES.json b/app/appearance/langs/es_ES.json
index 53f0e5b91..d9865401a 100644
--- a/app/appearance/langs/es_ES.json
+++ b/app/appearance/langs/es_ES.json
@@ -995,7 +995,7 @@
     "105": "El repositorio de datos corruptos se ha restablecido automáticamente",
     "106": "La longitud máxima está limitada a 512 caracteres",
     "107": "Moviendo documento [%s]",
-    "108": "Reconstrucción del índice completada",
+    "108": "TODO",
     "109": "Eliminación de recordatorios completada [%s]",
     "110": "Renombrar...",
     "111": "Guardando documento [%s]...",
diff --git a/app/appearance/langs/fr_FR.json b/app/appearance/langs/fr_FR.json
index 2e3dc6976..6865fd911 100644
--- a/app/appearance/langs/fr_FR.json
+++ b/app/appearance/langs/fr_FR.json
@@ -995,7 +995,7 @@
     "105": "Le référentiel de données corrompu a été automatiquement réinitialisé",
     "106": "La longueur maximale est limitée à 512 caractères",
     "107": "Déplacement du document [%s]",
-    "108": "Reconstruire l'index terminé",
+    "108": "TODO",
     "109": "Supprimer le rappel terminé [%s]",
     "110": "Renommer...",
     "111": "Enregistrement du document [%s]...",
diff --git a/app/appearance/langs/zh_CHT.json b/app/appearance/langs/zh_CHT.json
index 345a8e1cc..2c345493d 100644
--- a/app/appearance/langs/zh_CHT.json
+++ b/app/appearance/langs/zh_CHT.json
@@ -995,7 +995,7 @@
     "105": "已經自動重置損壞的數據倉庫",
     "106": "最大長度限制為 512 字元",
     "107": "正在移動文檔 [%s]",
-    "108": "重建索引完畢",
+    "108": "TODO",
     "109": "移除提醒完畢 [%s]",
     "110": "正在重命名...",
     "111": "正在保存文檔 [%s]...",
diff --git a/app/appearance/langs/zh_CN.json b/app/appearance/langs/zh_CN.json
index adeecada7..e4042366f 100644
--- a/app/appearance/langs/zh_CN.json
+++ b/app/appearance/langs/zh_CN.json
@@ -995,7 +995,7 @@
     "105": "已经自动重置损坏的数据仓库",
     "106": "最大长度限制为 512 字符",
     "107": "正在移动文档 [%s]",
-    "108": "重建索引完毕",
+    "108": "TODO",
     "109": "移除提醒完毕 [%s]",
     "110": "正在重命名...",
     "111": "正在保存文档 [%s]...",
diff --git a/kernel/model/box.go b/kernel/model/box.go
index 7ffd2ae3e..d1f5b99ce 100644
--- a/kernel/model/box.go
+++ b/kernel/model/box.go
@@ -25,7 +25,7 @@ import (
 	"os"
 	"path"
 	"path/filepath"
-	"runtime"
+	"runtime/debug"
 	"sort"
 	"strings"
 	"sync"
@@ -517,11 +517,10 @@ func fullReindex() {
 	sql.EnableCache()
 	treenode.SaveBlockTree(true)
 	LoadFlashcards()
-	runtime.GC()
+	debug.FreeOSMemory()
 	go func() {
 		time.Sleep(3 * time.Second)
 		util.PushClearMsg(msgId)
-		util.PushStatusBar(Conf.Language(108))
 	}()
 }
 
diff --git a/kernel/model/import.go b/kernel/model/import.go
index d84aeacc2..88beaf952 100644
--- a/kernel/model/import.go
+++ b/kernel/model/import.go
@@ -31,7 +31,7 @@ import (
 	"os"
 	"path"
 	"path/filepath"
-	"runtime"
+	"runtime/debug"
 	"sort"
 	"strconv"
 	"strings"
@@ -700,7 +700,7 @@ func ImportFromLocalPath(boxID, localPath string, toPath string) (err error) {
 
 	IncSync()
 	util.ReloadUI()
-	runtime.GC()
+	debug.FreeOSMemory()
 	return
 }
 
diff --git a/kernel/model/index.go b/kernel/model/index.go
index a84325265..533648040 100644
--- a/kernel/model/index.go
+++ b/kernel/model/index.go
@@ -19,6 +19,7 @@ package model
 import (
 	"fmt"
 	"runtime"
+	"runtime/debug"
 	"strings"
 	"sync"
 	"time"
@@ -125,7 +126,7 @@ func index(boxID string) {
 	end := time.Now()
 	elapsed := end.Sub(start).Seconds()
 	logging.LogInfof("rebuilt database for notebook [%s] in [%.2fs], tree [count=%d, size=%s]", box.ID, elapsed, treeCount, humanize.Bytes(uint64(treeSize)))
-	runtime.GC()
+	debug.FreeOSMemory()
 	return
 }
 
diff --git a/kernel/model/index_fix.go b/kernel/model/index_fix.go
index dd94fe500..a63cd8d53 100644
--- a/kernel/model/index_fix.go
+++ b/kernel/model/index_fix.go
@@ -21,6 +21,7 @@ import (
 	"os"
 	"path"
 	"path/filepath"
+	"runtime/debug"
 	"strings"
 	"sync"
 	"time"
@@ -148,6 +149,7 @@ func autoFixIndex() {
 	util.PushStatusBar(Conf.Language(58))
 	sql.WaitForWritingDatabase()
 	util.PushStatusBar(Conf.Language(185))
+	debug.FreeOSMemory()
 }
 
 func reindexTreeByUpdated(rootUpdatedMap, dbRootUpdatedMap map[string]string) {
diff --git a/kernel/model/process.go b/kernel/model/process.go
index 7b68f7439..f6937203a 100644
--- a/kernel/model/process.go
+++ b/kernel/model/process.go
@@ -55,12 +55,15 @@ func HookDesktopUIProcJob() {
 	}
 
 	if 0 < util.CountSessions() {
+		// 如果存在活动的会话则说明 UI 进程还在运行
 		return
 	}
 
 	uiProcNames := []string{"siyuan", "electron"}
 	uiProcessCount := 0
 	util.UIProcessIDs.Range(func(uiProcIDArg, _ interface{}) bool {
+		// 从 UI 进程 ID 列表中找到 UI 进程
+
 		uiProcessCount++
 		uiProcID, err := strconv.Atoi(uiProcIDArg.(string))
 		if nil != err {
@@ -89,8 +92,25 @@ func HookDesktopUIProcJob() {
 		}
 		return true
 	})
+
 	if 1 > uiProcessCount {
-		noUIProcCount++
+		// 如果 UI 进程 ID 列表中没有找到 UI 进程则从完整的进程列表中找
+		procs, _ := goPS.Processes()
+		for _, proc := range procs {
+			procName := strings.ToLower(proc.Executable())
+			uiProcOk := false
+			for _, name := range uiProcNames {
+				uiProcOk = strings.Contains(procName, name)
+			}
+			if uiProcOk {
+				uiProcessCount++
+				break
+			}
+		}
+
+		if 1 > uiProcessCount {
+			noUIProcCount++
+		}
 	}
 
 	if 0 < noUIProcCount {
diff --git a/kernel/sql/cache.go b/kernel/sql/cache.go
index 6b4849d36..c0cc49e8f 100644
--- a/kernel/sql/cache.go
+++ b/kernel/sql/cache.go
@@ -17,7 +17,7 @@
 package sql
 
 import (
-	"runtime"
+	"runtime/debug"
 	"time"
 
 	"github.com/88250/lute/ast"
@@ -45,7 +45,7 @@ func DisableCache() {
 
 func ClearBlockCache() {
 	memCache.Clear()
-	runtime.GC()
+	debug.FreeOSMemory()
 }
 
 func putBlockCache(block *Block) {
diff --git a/kernel/sql/database.go b/kernel/sql/database.go
index 1d0323610..5794f5461 100644
--- a/kernel/sql/database.go
+++ b/kernel/sql/database.go
@@ -25,6 +25,7 @@ import (
 	"path/filepath"
 	"regexp"
 	"runtime"
+	"runtime/debug"
 	"strings"
 	"sync"
 	"time"
@@ -1267,6 +1268,7 @@ func closeDatabase() (err error) {
 	}
 
 	err = db.Close()
+	debug.FreeOSMemory()
 	runtime.GC() // 没有这句的话文件句柄不会释放，后面就无法删除文件
 	return
 }
diff --git a/kernel/sql/queue.go b/kernel/sql/queue.go
index b535bb3bd..8ab363c01 100644
--- a/kernel/sql/queue.go
+++ b/kernel/sql/queue.go
@@ -21,7 +21,7 @@ import (
 	"errors"
 	"fmt"
 	"path"
-	"runtime"
+	"runtime/debug"
 	"sync"
 	"time"
 
@@ -128,12 +128,12 @@ func FlushQueue() {
 		}
 
 		if 16 < i && 0 == i%128 {
-			runtime.GC()
+			debug.FreeOSMemory()
 		}
 	}
 
 	if 128 < len(ops) {
-		runtime.GC()
+		debug.FreeOSMemory()
 	}
 
 	elapsed := time.Now().Sub(start).Milliseconds()
diff --git a/kernel/treenode/blocktree.go b/kernel/treenode/blocktree.go
index fdfeaf112..2e936f840 100644
--- a/kernel/treenode/blocktree.go
+++ b/kernel/treenode/blocktree.go
@@ -21,6 +21,7 @@ import (
 	"os"
 	"path/filepath"
 	"runtime"
+	"runtime/debug"
 	"strings"
 	"sync"
 	"time"
@@ -380,7 +381,7 @@ func InitBlockTree(force bool) {
 	waitGroup.Wait()
 	p.Release()
 
-	runtime.GC()
+	debug.FreeOSMemory()
 	elapsed := time.Since(start).Seconds()
 	logging.LogInfof("read block tree [%s] to [%s], elapsed [%.2fs]", humanize.Bytes((size)), util.BlockTreePath, elapsed)
 	return