diff --git a/11_day/bootpack.c b/11_day/bootpack.c
index b0729f0..b52dca8 100644
--- a/11_day/bootpack.c
+++ b/11_day/bootpack.c
@@ -8,7 +8,7 @@ void HariMain(void)
 	struct BOOTINFO *binfo = (struct BOOTINFO *) ADR_BOOTINFO;
 	char s[40], keybuf[32], mousebuf[128];
 	int mx, my, i;
-	unsigned int memtotal;
+	unsigned int memtotal, count = 0;
 	struct MOUSE_DEC mdec;
 	struct MEMMAN *memman = (struct MEMMAN *) MEMMAN_ADDR;
 	struct SHTCTL *shtctl;
@@ -37,23 +37,21 @@ void HariMain(void)
 	sht_mouse = sheet_alloc(shtctl);
 	sht_win = sheet_alloc(shtctl);
 	buf_back  = (unsigned char *) memman_alloc_4k(memman, binfo->scrnx * binfo->scrny);
-	buf_win = (unsigned char *) memman_alloc_4k(memman, 160 * 68); 
+	buf_win = (unsigned char *) memman_alloc_4k(memman, 160 * 52);
 	sheet_setbuf(sht_back, buf_back, binfo->scrnx, binfo->scrny, -1); /* 没有透明色 */
 	sheet_setbuf(sht_mouse, buf_mouse, 16, 16, 99); /* 透明色号99 */
-	sheet_setbuf(sht_win, buf_win, 160, 68, -1); /* 没有透明色 */
+	sheet_setbuf(sht_win, buf_win, 160, 52, -1); /* 没有透明色 */
 	init_screen8(buf_back, binfo->scrnx, binfo->scrny);
 	init_mouse_cursor8(buf_mouse, 99); /* 背景色号99 */
-	make_window8(buf_win, 160, 68, "window");
-	putfonts8_asc(buf_win, 160, 24, 28, COL8_000000, "Welcome to");
-	putfonts8_asc(buf_win, 160, 24, 44, COL8_000000, " Haribote-OS!");
+	make_window8(buf_win, 160, 52, "counter");
 	sheet_slide(sht_back, 0, 0);
 	mx = (binfo->scrnx - 16) / 2; /* 按显示在画面中央来计算坐标 */
 	my = (binfo->scrny - 28 - 16) / 2;
 	sheet_slide(sht_mouse, mx, my);
 	sheet_slide(sht_win, 80, 72); 
 	sheet_updown(sht_back,  0);
-	sheet_updown(sht_mouse, 1);
-	sheet_updown(sht_win, 2);
+	sheet_updown(sht_win, 1);
+	sheet_updown(sht_mouse, 2);
 	sprintf(s, "(%3d, %3d)", mx, my);
 	putfonts8_asc(buf_back, binfo->scrnx, 0, 0, COL8_FFFFFF, s);
 	sprintf(s, "memory %dMB free : %dKB", memtotal / (1024 * 1024), memman_total(memman) / 1024);
@@ -61,9 +59,15 @@ void HariMain(void)
 	sheet_refresh(sht_back, 0, 0, binfo->scrnx, 48); /* 刷新文字 */
 
 	for (;;) {
+		count++; /* 从这里开始 */
+		sprintf(s, "%010d", count);
+		boxfill8(buf_win, 160, COL8_C6C6C6, 40, 28, 119, 43);
+		putfonts8_asc(buf_win, 160, 40, 28, COL8_000000, s);
+		sheet_refresh(sht_win, 40, 28, 120, 44); /* 到这里结束 */
+
 		io_cli();
 		if (fifo8_status(&keyfifo) + fifo8_status(&mousefifo) == 0) {
-			io_stihlt();
+			io_sti(); /* 不做HLT */
 		} else {
 			if (fifo8_status(&keyfifo) != 0) {
 				i = fifo8_get(&keyfifo);