diff --git a/NEWS.md b/NEWS.md
index 5f3f9533..56320fb6 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -18,6 +18,8 @@ Red Panda C++ Version 2.12
   - change: The default disassemble style of CPU Dialog is "AT&T" now.
   - fix: Can't compile files with chinese characters in filenames using winlibs mingw gcc
   - fix: If current editor is empty, parser will parse the file's content on the disk instead from the editor.
+  - fix: Can't show completion when cursor is after "char["
+  - change: Don't confirm rebuild/recompile when run/debug.
 
 Red Panda C++ Version 2.11
 
diff --git a/RedPandaIDE/editor.cpp b/RedPandaIDE/editor.cpp
index 29dc7d2e..7dfa610d 100644
--- a/RedPandaIDE/editor.cpp
+++ b/RedPandaIDE/editor.cpp
@@ -367,7 +367,6 @@ bool Editor::saveAs(const QString &name, bool fromProject){
         QString selectedFileFilter;
         QString defaultExt;
         defaultExt=QFileInfo(oldName).suffix();
-        qDebug()<<defaultExt;
         if (defaultExt.isEmpty()) {
             if (pSettings->editor().defaultFileCpp()) {
                 selectedFileFilter = pSystemConsts->defaultCPPFileFilter();
@@ -4654,7 +4653,7 @@ QString Editor::getPreviousWordAtPositionForSuggestion(const QSynedit::BufferCoo
 
     QString s = document()->getLine(p.line - 1);
     int wordBegin;
-    int wordEnd = p.ch-1;
+    int wordEnd = p.ch-2;
     if (wordEnd >= s.length())
         wordEnd = s.length()-1;
     while (true) {
diff --git a/RedPandaIDE/mainwindow.cpp b/RedPandaIDE/mainwindow.cpp
index 0c8c7859..fffdbe4d 100644
--- a/RedPandaIDE/mainwindow.cpp
+++ b/RedPandaIDE/mainwindow.cpp
@@ -1974,12 +1974,7 @@ void MainWindow::runExecutable(
     // Check if it exists
     if (!fileExists(exeName)) {
         if (ui->actionCompile_Run->isEnabled()) {
-            if (QMessageBox::question(this,tr("Confirm"),
-                                     tr("Source file is not compiled.")
-                                     +"<br /><br />"+tr("Compile now?"),
-                    QMessageBox::Yes | QMessageBox::No) == QMessageBox::Yes) {
-                doCompileRun(runType);
-            }
+            doCompileRun(runType);
             return;
         } else {
             QMessageBox::critical(this,"Error",
@@ -1988,18 +1983,8 @@ void MainWindow::runExecutable(
         }
     } else {
         if (!filename.isEmpty() && compareFileModifiedTime(filename,exeName)>=0) {
-//            if (ui->actionCompile_Run->isEnabled()) {
-            if (QMessageBox::warning(this,tr("Confirm"),
-                                     tr("Source file is more recent than executable.")
-                                     +"<br /><br />"+tr("Recompile now?"),
-                    QMessageBox::Yes | QMessageBox::No) == QMessageBox::Yes) {
-                doCompileRun(runType);
-                return;
-            }
-//            } else {
-//                QMessageBox::warning(this,"Error",
-//                                       tr("Source file is more recent than executable."));
-//            }
+            doCompileRun(runType);
+            return;
         }
     }
 
@@ -2044,12 +2029,7 @@ void MainWindow::runExecutable(RunType runType)
         QStringList binDirs = mProject->binDirs();
         QFileInfo execInfo(mProject->executable());
         QDateTime execModTime = execInfo.lastModified();
-        if (execInfo.exists() && mProject->modifiedSince(execModTime)  &&
-                QMessageBox::question(
-                    this,
-                    tr("Rebuild Project"),
-                    tr("Project has been modified, do you want to rebuild it?")
-                                                      ) == QMessageBox::Yes) {
+        if (execInfo.exists() && mProject->modifiedSince(execModTime)) {
             //mProject->saveAll();
             mCompileSuccessionTask=std::make_shared<CompileSuccessionTask>();
             mCompileSuccessionTask->type = CompileSuccessionTaskType::RunNormal;
@@ -2138,30 +2118,18 @@ void MainWindow::debug()
 
         // Did we compile?
         if (!fileExists(mProject->executable())) {
-            if (QMessageBox::question(
-                        this,
-                        tr("Project not built"),
-                        tr("Project hasn't been built. Build it now?"),
-                        QMessageBox::Yes | QMessageBox::No,
-                        QMessageBox::Yes) == QMessageBox::Yes) {
-                mCompileSuccessionTask=std::make_shared<CompileSuccessionTask>();
-                mCompileSuccessionTask->type = CompileSuccessionTaskType::Debug;
-                mCompileSuccessionTask->execName = mProject->executable();
-                mCompileSuccessionTask->isExecutable = true;
-                mCompileSuccessionTask->binDirs = binDirs;
-                compile();
-            }
+            mCompileSuccessionTask=std::make_shared<CompileSuccessionTask>();
+            mCompileSuccessionTask->type = CompileSuccessionTaskType::Debug;
+            mCompileSuccessionTask->execName = mProject->executable();
+            mCompileSuccessionTask->isExecutable = true;
+            mCompileSuccessionTask->binDirs = binDirs;
+            compile();
             return;
         }
         {
             QFileInfo execInfo(mProject->executable());
             QDateTime execModTime = execInfo.lastModified();
-            if (execInfo.exists() && mProject->modifiedSince(execModTime)  &&
-                    QMessageBox::question(
-                        this,
-                        tr("Rebuild Project"),
-                        tr("Project has been modified, do you want to rebuild it?")
-                                                          ) == QMessageBox::Yes) {
+            if (execInfo.exists() && mProject->modifiedSince(execModTime)) {
                 //mProject->saveAll();
                 mCompileSuccessionTask=std::make_shared<CompileSuccessionTask>();
                 mCompileSuccessionTask->type = CompileSuccessionTaskType::Debug;
@@ -5592,35 +5560,41 @@ void MainWindow::onCompileFinished(QString filename, bool isCheckSyntax)
     if (!isCheckSyntax) {
         //run succession task if there aren't any errors
         if (mCompileSuccessionTask && mCompilerManager->compileErrorCount()==0) {
+            if (!fileExists(mCompileSuccessionTask->execName)) {
+                QMessageBox::critical(this,tr("Compile Failed"),
+                                      tr("Failed to generate the executable.")+"<BR/><BR/>"
+                                      +tr("Please check detail info in \"Tools Output\" panel."));
+
+                return;
+            }
             if (!mCompileSuccessionTask->isExecutable) {
+                Editor * editor;
                 switch (mCompileSuccessionTask->type) {
                 case MainWindow::CompileSuccessionTaskType::RunNormal:
-                    if (fileExists(mCompileSuccessionTask->execName)) {
-                        Editor * editor = openFile(mCompileSuccessionTask->execName);
-                        if (e && editor) {
-                            int line = e->caretY();
-                            int startLine = 1;
-                            QString s = " # "+e->filename()+":";
-                            for(int i=0;i<editor->document()->count();i++) {
-                                QString t=editor->document()->getLine(i);
-                                if (t.startsWith(s,PATH_SENSITIVITY)) {
-                                    t=t.mid(s.length());
-                                    int pos = t.indexOf(":");
-                                    if (pos>0) {
-                                        QString numstring=t.mid(0,pos);
-                                        bool isOk;
-                                        int l=numstring.toInt(&isOk);
-                                        if (isOk) {
-                                            if (l<=line)
-                                                startLine=i+1;
-                                            if (l>=line)
-                                                break;
-                                        }
+                    editor = openFile(mCompileSuccessionTask->execName);
+                    if (e && editor) {
+                        int line = e->caretY();
+                        int startLine = 1;
+                        QString s = " # "+e->filename()+":";
+                        for(int i=0;i<editor->document()->count();i++) {
+                            QString t=editor->document()->getLine(i);
+                            if (t.startsWith(s,PATH_SENSITIVITY)) {
+                                t=t.mid(s.length());
+                                int pos = t.indexOf(":");
+                                if (pos>0) {
+                                    QString numstring=t.mid(0,pos);
+                                    bool isOk;
+                                    int l=numstring.toInt(&isOk);
+                                    if (isOk) {
+                                        if (l<=line)
+                                            startLine=i+1;
+                                        if (l>=line)
+                                            break;
                                     }
                                 }
                             }
-                            editor->setCaretPositionAndActivate(startLine,1);
                         }
+                        editor->setCaretPositionAndActivate(startLine,1);
                     }
                     break;
                 case MainWindow::CompileSuccessionTaskType::RunProblemCases:
diff --git a/Red_Panda_CPP.pro b/Red_Panda_CPP.pro
index a7a8b684..1f2fe1a9 100644
--- a/Red_Panda_CPP.pro
+++ b/Red_Panda_CPP.pro
@@ -80,6 +80,7 @@ win32: {
         QMAKE_SUBSTITUTES += platform/windows/installer-scripts/config-clang.nsh.in
 
         resources.path = $${PREFIX}
+
         resources.files += platform/windows/templates
         resources.files += platform/windows/installer-scripts/config.nsh
         resources.files += platform/windows/installer-scripts/config32.nsh
@@ -90,5 +91,11 @@ win32: {
         resources.files += RedPandaIDE/images/devcpp.ico
 
         INSTALLS += resources
+
+        equals(X86_64, "ON") {
+            extra_templates.path = $${PREFIX}/templates
+            extra_templates.files += platform/windows/templates-win64/*
+            INSTALLS += extra_templates
+        }
     }
 }
diff --git a/packages/msys/build-x64.sh b/packages/msys/build-x64.sh
index 2cf4315c..b4bc0fea 100644
--- a/packages/msys/build-x64.sh
+++ b/packages/msys/build-x64.sh
@@ -20,7 +20,7 @@ echo "Building..."
 pushd .
 cd "${BUILD_DIR}"
 make distclean
-"$QMAKE" PREFIX="${PACKAGE_DIR}" -o Makefile "${SOURCE_DIR}\Red_Panda_Cpp.pro" -r -spec win32-g++ 
+"$QMAKE" PREFIX="${PACKAGE_DIR}" X86_64=ON -o Makefile "${SOURCE_DIR}\Red_Panda_Cpp.pro" -r -spec win32-g++  
 make -j16
 make install
 popd
diff --git a/platform/windows/templates/GAS_C/app.ico b/platform/windows/templates-win64/GAS_C/app.ico
similarity index 100%
rename from platform/windows/templates/GAS_C/app.ico
rename to platform/windows/templates-win64/GAS_C/app.ico
diff --git a/platform/windows/templates/GAS_C/info.template b/platform/windows/templates-win64/GAS_C/info.template
similarity index 100%
rename from platform/windows/templates/GAS_C/info.template
rename to platform/windows/templates-win64/GAS_C/info.template
diff --git a/platform/windows/templates/GAS_C/main.cpp b/platform/windows/templates-win64/GAS_C/main.cpp
similarity index 100%
rename from platform/windows/templates/GAS_C/main.cpp
rename to platform/windows/templates-win64/GAS_C/main.cpp
diff --git a/platform/windows/templates/GAS_C/utils.s b/platform/windows/templates-win64/GAS_C/utils.s
similarity index 100%
rename from platform/windows/templates/GAS_C/utils.s
rename to platform/windows/templates-win64/GAS_C/utils.s
diff --git a/platform/windows/templates/Hello_GAS/app.ico b/platform/windows/templates-win64/Hello_GAS/app.ico
similarity index 100%
rename from platform/windows/templates/Hello_GAS/app.ico
rename to platform/windows/templates-win64/Hello_GAS/app.ico
diff --git a/platform/windows/templates/Hello_GAS/info.template b/platform/windows/templates-win64/Hello_GAS/info.template
similarity index 100%
rename from platform/windows/templates/Hello_GAS/info.template
rename to platform/windows/templates-win64/Hello_GAS/info.template
diff --git a/platform/windows/templates/Hello_GAS/main.s b/platform/windows/templates-win64/Hello_GAS/main.s
similarity index 73%
rename from platform/windows/templates/Hello_GAS/main.s
rename to platform/windows/templates-win64/Hello_GAS/main.s
index 5005cfe7..20b0a580 100644
--- a/platform/windows/templates/Hello_GAS/main.s
+++ b/platform/windows/templates-win64/Hello_GAS/main.s
@@ -5,10 +5,8 @@ main:
 	# the x64 calling convention requires you to allocate 32 bytes of shadow space before each call
 	# https://stackoverflow.com/questions/30190132/what-is-the-shadow-space-in-x64-assembly/
 	sub 	$32, %rsp           # allocate shadow space
-	leaq	fmt(%rip), %rax # first parameter 
-	movq 	%rax, %rcx
-	leaq	msg(%rip), %rax # second parameter
-	movq 	%rax, %rdx
+	leaq	fmt(%rip), %rcx # first parameter 
+	leaq	msg(%rip), %rdx # second parameter
 	call 	printf
 	add 	$32, %rsp           # remove shadow space
 
diff --git a/platform/windows/templates/Hello_NASM/app.ico b/platform/windows/templates-win64/Hello_NASM/app.ico
similarity index 100%
rename from platform/windows/templates/Hello_NASM/app.ico
rename to platform/windows/templates-win64/Hello_NASM/app.ico
diff --git a/platform/windows/templates/Hello_NASM/info.template b/platform/windows/templates-win64/Hello_NASM/info.template
similarity index 100%
rename from platform/windows/templates/Hello_NASM/info.template
rename to platform/windows/templates-win64/Hello_NASM/info.template
diff --git a/platform/windows/templates/Hello_NASM/main.asm b/platform/windows/templates-win64/Hello_NASM/main.asm
similarity index 86%
rename from platform/windows/templates/Hello_NASM/main.asm
rename to platform/windows/templates-win64/Hello_NASM/main.asm
index eb53051d..53958bfc 100644
--- a/platform/windows/templates/Hello_NASM/main.asm
+++ b/platform/windows/templates-win64/Hello_NASM/main.asm
@@ -11,8 +11,8 @@ main:
 ; the x64 calling convention requires you to allocate 32 bytes of shadow space before each call
 ; https://stackoverflow.com/questions/30190132/what-is-the-shadow-space-in-x64-assembly/
 	sub rsp, 32		; allocate shadow space
-	mov rcx, fmt	; first parameter 
-	mov rdx, msg	; secodng parameter
+	lea rcx, [rel fmt]	; first parameter 
+	lea rdx, [rel msg]	; secodng parameter
 	call printf
 	
 	add rsp,32	; remove shadow space
diff --git a/platform/windows/templates/NASM_C/app.ico b/platform/windows/templates-win64/NASM_C/app.ico
similarity index 100%
rename from platform/windows/templates/NASM_C/app.ico
rename to platform/windows/templates-win64/NASM_C/app.ico
diff --git a/platform/windows/templates/NASM_C/info.template b/platform/windows/templates-win64/NASM_C/info.template
similarity index 100%
rename from platform/windows/templates/NASM_C/info.template
rename to platform/windows/templates-win64/NASM_C/info.template
diff --git a/platform/windows/templates/NASM_C/main.cpp b/platform/windows/templates-win64/NASM_C/main.cpp
similarity index 100%
rename from platform/windows/templates/NASM_C/main.cpp
rename to platform/windows/templates-win64/NASM_C/main.cpp
diff --git a/platform/windows/templates/NASM_C/utils.asm b/platform/windows/templates-win64/NASM_C/utils.asm
similarity index 100%
rename from platform/windows/templates/NASM_C/utils.asm
rename to platform/windows/templates-win64/NASM_C/utils.asm