diff --git a/libsearch/index/construct-document.cpp b/libsearch/index/construct-document.cpp
index 445bdb5..1b1f4eb 100644
--- a/libsearch/index/construct-document.cpp
+++ b/libsearch/index/construct-document.cpp
@@ -54,12 +54,12 @@ void ConstructDocumentForPath::run() {
 //    }
 
     QString uniqueterm = QString::fromStdString(FileUtils::makeDocUterm(sourcePath));
-    QString upTerm = QString::fromStdString(FileUtils::makeDocUterm(sourcePath.section("/", 0, -2, QString::SectionIncludeLeadingSep)));
+    QString upTerm = QString::fromStdString("ZEEKERUPTERM" + FileUtils::makeDocUterm(sourcePath.section("/", 0, -2, QString::SectionIncludeLeadingSep)));
 //    qDebug()<<"sourcePath"<<sourcePath.section("/",0,-2,QString::SectionIncludeLeadingSep);
 //    qDebug() << "sourcePath ---------------------------: " << sourcePath;
 //    qDebug() << "sourcePath.section -------------------: " << sourcePath.section("/",0,-2,QString::SectionIncludeLeadingSep);
 //    qDebug() << "ConstructDocumentForPath -- uniqueterm: " << uniqueterm;
-//    qDebug() << "ConstructDocumentForPath -- upTerm:     " << upTerm;
+//    qDebug() << "ConstructDocumentForPath -- upTerm :     " << upTerm;
 
 
     doc.setData(sourcePath);
@@ -115,7 +115,7 @@ void ConstructDocumentForContent::run() {
     //doc.setUniqueTerm(uniqueterm);
     doc.setUniqueTerm(FileUtils::makeDocUterm(m_path));
     //doc.addTerm(upTerm);
-    doc.addTerm(FileUtils::makeDocUterm(m_path.section("/", 0, -2, QString::SectionIncludeLeadingSep)));
+    doc.addTerm("ZEEKERUPTERM" + FileUtils::makeDocUterm(m_path.section("/", 0, -2, QString::SectionIncludeLeadingSep)));
     doc.addValue(m_path);
 
     //'\xEF\xBC\x8C' is "，" "\xE3\x80\x82" is "。"  use three " " to replace ,to ensure the offset info.
diff --git a/libsearch/index/index-generator.cpp b/libsearch/index/index-generator.cpp
index 06efc6e..c846873 100644
--- a/libsearch/index/index-generator.cpp
+++ b/libsearch/index/index-generator.cpp
@@ -456,20 +456,27 @@ bool IndexGenerator::deleteAllIndex(QStringList *pathlist) {
     if(list->isEmpty())
         return true;
     try {
+        qDebug() << "--delete start--";
         for(int i = 0; i < list->size(); i++) {
             QString doc = list->at(i);
             std::string uniqueterm = FileUtils::makeDocUterm(doc);
-            qDebug() << "--delete start--";
+            std::string upterm = "ZEEKERUPTERM" + FileUtils::makeDocUterm(doc);
+
             m_database_path->delete_document(uniqueterm);
             m_database_content->delete_document(uniqueterm);
+
+            //delete all files under it if it's a dir.
+            m_database_path->delete_document(upterm);
+            m_database_content->delete_document(upterm);
             qDebug() << "delete path" << doc;
-            qDebug() << "delete md5" << QString::fromStdString(uniqueterm);
-            qDebug() << "--delete finish--";
+//            qDebug() << "delete md5" << QString::fromStdString(uniqueterm);
+
             //            qDebug()<<"m_database_path->get_lastdocid()!!!"<<m_database_path->get_lastdocid();
             //            qDebug()<<"m_database_path->get_doccount()!!!"<<m_database_path->get_doccount();
         }
         m_database_path->commit();
         m_database_content->commit();
+        qDebug() << "--delete finish--";
     } catch(const Xapian::Error &e) {
         qWarning() << QString::fromStdString(e.get_description());
         return false;
diff --git a/libsearch/parser/binary-parser.cpp b/libsearch/parser/binary-parser.cpp
index 59e9ef4..040a2cb 100644
--- a/libsearch/parser/binary-parser.cpp
+++ b/libsearch/parser/binary-parser.cpp
@@ -4874,6 +4874,7 @@ bool KBinaryParser::read8DocText(FILE *pFile, const ppsInfoType *pPPS,
     const ULONG	*aulBlockDepot;
     ULONG	ulTextOffset, ulBeginTextInfo;
     ULONG	ulTotLength, ulLen;
+    ULONG   ulEncryptInfo;
     long	lIndex, lPieces, lOff;
     size_t	tTextInfoLen, tBlockDepotLen, tBlockSize;
     int	iType, iLen;
@@ -4882,6 +4883,11 @@ bool KBinaryParser::read8DocText(FILE *pFile, const ppsInfoType *pPPS,
 
     ulBeginTextInfo = ulGetLong(0x1a2, aucHeader);	/* fcClx */
     tTextInfoLen = (size_t)ulGetLong(0x1a6, aucHeader);	/* lcbClx */
+    ulEncryptInfo = ulGetLong(0x0a, aucHeader);
+    if(ulEncryptInfo & 0x0100) {
+        qDebug() << "Encrypt file:" << m_strFileName << (size_t)ulEncryptInfo;
+        return false;
+    }
 
     if(pPPS->tTable.ulSize == 0)
         return false;
diff --git a/src/content-widget.cpp b/src/content-widget.cpp
index 0fdcee8..8d04eef 100644
--- a/src/content-widget.cpp
+++ b/src/content-widget.cpp
@@ -39,7 +39,7 @@ ContentWidget::ContentWidget(QWidget * parent): QStackedWidget(parent) {
         m_quicklyOpenList.replace(2, "/usr/share/applications/eom.desktop");
     }
     if (QString::compare(FileUtils::getAppName(m_quicklyOpenList.at(4)), "Unknown App") == 0) {
-        m_quicklyOpenList.replace(4, "/usr/share/applications/org.gnome.Evolution.desktop");
+        m_quicklyOpenList.replace(4, "/usr/share/applications/evolution.desktop");
     }
 }
 
diff --git a/src/input-box.cpp b/src/input-box.cpp
index 0b57c19..a81f9ce 100644
--- a/src/input-box.cpp
+++ b/src/input-box.cpp
@@ -105,20 +105,9 @@ void SearchBarHLayout::initUI() {
     queryWidLayout->setSpacing(5);
     m_queryWidget->setLayout(queryWidLayout);
 
-
-    if (!QIcon::fromTheme("system-search-symbolic").isNull()) {
-        QPixmap pixmap(QIcon::fromTheme("system-search-symbolic").pixmap(QSize(20, 20)));
-        m_queryIcon = new QLabel;
-        m_queryIcon->setFixedSize(pixmap.size());
-        m_queryIcon->setPixmap(pixmap);
-    } else {
-        QPixmap pixmap(QIcon(":/res/icons/system-search.symbolic.png").pixmap(QSize(20, 20)));
-        m_queryIcon = new QLabel;
-        m_queryIcon->setFixedSize(pixmap.size());
-        m_queryIcon->setPixmap(pixmap);
-    }
-    QPixmap pixmap(QIcon::fromTheme("system-search-symbolic").pixmap(QSize(20, 20)));
+    QPixmap pixmap(QIcon::fromTheme("system-search-symbolic", QIcon(":/res/icons/system-search.symbolic.png")).pixmap(QSize(20, 20)));
     m_queryIcon = new QLabel;
+    m_queryIcon->setProperty("useIconHighlightEffect", 0x10);
     m_queryIcon->setFixedSize(pixmap.size());
     m_queryIcon->setPixmap(pixmap);