求助！电脑出问题了

电脑启动，运行到：<br>Boot from ATAPI　CD-ROM:<br><br>No Emulation<br>ress any key to boot from CD...<br><br>屏幕显示以下文字（黑屏）<br><br>Windows could not start because the following file is missing or corrupt: <br><br>System32\DRIVERS\pci.sys<br><br>You can attempt to repair this file by starting Windows Setup using original Setup CD-ROM.<br><br>Select "r" at the first screen to start repair. <br><br>我有安装盘，不好意思，具体怎么操作呢(什么时候放安装盘，具体步骤）我是电脑盲<!--emo&--><img src='https://www.kaiyuan.info/modules/ipboard/html/emoticons/smile.gif' border='0' style='vertical-align:middle' alt='smile.gif'><!--endemo-->谢谢！<br><br>

lol, 没有多少讲究，可以开机前(最好开机是system选择)，也可在她要求你放的时候放进去。