推荐回答（5个）
进去后就一个游戏画面在桌面中间是么？
那么你先把你的显示器的分辨率设为1024x768，然后进游戏，在设置里把分辨率调成800x600的，保存，退出，再把你的显示器分辨率调回原来的设置，再进游戏就行了。
再给你2个方法试试：
1： http://cf.52pk.com/shtml/20100225/845123.shtml
打开这个网页（CF官方主页论坛）
首页 > 穿越火线 > 穿越火线玩家交流 > 正文：解决CF黑边和无法全屏的完美方案
2：用笔记本玩CF不能全屏，两边有黑边怎么解决
步骤：
1.点“开始”-输入“regedit”—回车
2.依次选中如下路径HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\GraphicsDrivers\Configuration
3.在对话框的左上部选择“编辑”菜单，选择“查找”，输入“Scaling”，将4修改为3（该属性默认没有显示出来）
这2个方法你都试试，要是还不行，再把显示器的分辨率调到和游戏一样，再不行再想办法咯
方法1:
打开文件夹/先登陆一个ID.
等窗口跳转到游戏进入画面的时候/.
切换到文件夹<这个文件夹是方便切换用的>
然后再打开一个登陆窗/输入相同的ID登陆.
当第二个游戏进入的时候,系统就会提示你ID已经登陆.
你选择继续登陆/然后切换回原来的已经登陆了的游戏,
关闭第一个启动的游戏/屏幕会刷新一次/刷新完毕你就会发现你已经窗口化好了.
缺点在于无论怎样切换/鼠标都被锁死在窗口内.
补充一点:有的朋友问如果鼠标锁死在窗口内/
还有什么用?其实/在游戏窗口范围内的其他窗口都是可以活动的/鼠标也可以操作例如QQ之类的其他软件,但是如果在外面/
就操作不了啦.所以不能说完全没有用,只能说这样的窗口化效果功能有限,
且方法比较麻烦，相对较卡！而且采色不佳！……
方法2:
步骤：
<1>随便打开一个窗口！---作用：方便切换到桌面
<2>打开一个QQ消息、发送一个网址------作用：用于破除鼠标限制！-------如果不需要可以忽略此步！
<3>进游戏、然后切换到桌面
<4>在桌面右击鼠标---属性---设置---将屏幕分辨调整回原来的大小,一般为1024X768！
<5>确定、关掉、切换到游戏即已经窗口化了！
<6>破除鼠标限制：切换到QQ消息、点击网页打开游戏即可------PS：破解也是一次性的
你进去后点设置就是那个“×”图标的右边，进去后好像是“其他”选项里面有个选择全屏或是非全屏试试看行不行。
关于穿越火线画面不能全屏解决方案：
在搜索或者运行里的对话框内输入regedit
按运行进入右面的对话框中找HICEY
-LOCAL--MACHINE
双击进入找SYSTEM,再进入依次找子文件
Controlsetoo1--
-Control--GraphicSDrivers---Configaration在它的上面点击右键在对话框中
点击查找输Scaling.点击查找下一个，在右面对话框中找到Scaling,在它的上面
点击右键选修改，将数字4改为3即可我以前也有这样啊
呵呵！！
应该是显示率的问题。法一：桌面点右键，属性，设置，调成1024*768
2、如果1不管用的话进入穿越火线，在游戏的设置里调节分辨率就好了
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