xampp 安装问题 apache不能启动。

安装XAMPP时出现的提示。第一个提示：it seems you have an antivirus running.In some cases,this may slow down or interfere the installation of the software.please visit the following link to learn more about this.http://apachefriends.org/en/faq-xampp-windows.htm#antivirus/Continue with installation?看来你有一个防病毒running.In某些情况下，这可能会减慢或干扰的安装software.please请访问以下链接，了解更多关于此。 http://apachefriends.org/en/faq-XAMPP-windows.htm#antivirus继续安装？第二个提示：important!because an activated user account control(UAC) on your sytem some functions of XAMPP are possibly restricted.with UAC please avoid to install XAMPP to F:尀Program files(x86)(missing write permisssions).Or deactivate UAC with msconfig after this setup.重要的，因为激活的用户帐户控制（UAC）在你的系统正XAMPP的某些功能可能restricted.with UAC请避免XAMPP安装到F：尀 Program Files文件（x86）的（缺少写permisssions）。或停用后，UAC与MSCONFIG此设置。18:25:37 [Apache] Status change detected: running18:25:38 [Apache] Status change detected: stopped18:25:38 [Apache] Error: Apache shutdown unexpectedly.18:25:38 [Apache] This may be due to a blocked port, missing dependencies, 18:25:38 [Apache] improper privileges, a crash, or a shutdown by another method.18:25:38 [Apache] Press the Logs button to view error logs and check18:25:38 [Apache] the Windows Event Viewer for more clues18:25:38 [Apache] If you need more help, copy and post this18:25:38 [Apache] entire log window on the forums18:25:39 [Apache] Problem detected!18:25:39 [Apache] Port 80 in use by "Unable to open process" with PID 4!18:25:39 [Apache] Apache WILL NOT start without the configured ports free!18:25:39 [Apache] You need to uninstall/disable/reconfigure the blocking application18:25:39 [Apache] or reconfigure Apache and the Control Panel to listen on a different port18:25:39 [Apache] Attempting to start Apache app...18:25:39 [Apache] Status change detected: running18:25:40 [Apache] Status change detected: stopped18:25:40 [Apache] Error: Apache shutdown unexpectedly.18:25:40 [Apache] This may be due to a blocked port, missing dependencies, 18:25:40 [Apache] improper privileges, a crash, or a shutdown by another method.18:25:40 [Apache] Press the Logs button to view error logs and check18:25:40 [Apache] the Windows Event Viewer for more clues18:25:40 [Apache] If you need more help, copy and post this18:25:40 [Apache] entire log window on the forums原先用的mysql,把它卸载了。想装XAMPP，结果xampp 程序 打不开 Apache ，mysql能打开。安装不了XAMPP，上面就是提示的信息。怎么办，请求帮助。