hotmail收到病毒邮件，本来没什么问题，有人收到我的信（我没发），我就装norton antivirus，装之前预先检查一下，结果如下:

***NOTE: Close this window to continue installing the product.***

=========================================================
===============PRE-INSTALL SCANNER RESULTS===============
=========================================================
Summary:
Scan finished at 18:56:43 on 2004-8-12.
Number of Files Scanned: 92432
Number of Infections Found: 3
Number of Files Repaired: 0
Number of Files Deleted: 3
Number of Files Left Infected: 0
=========================================================
Details:
C:\WINNT\system32\iexplore.exe was infected with Trojan dropper. (DELETED)
C:\WINNT\system32\psinthk.dll was infected with Backdoor.Powerspider. (DELETED)
C:\WINNT\system32win.exe was infected with Trojan dropper. (DELETED)
=========================================================



然后重新开机
结果点exe，txt文件都打不开了，连norton也打不开了，只能上网～开不了msn,qq....

怎么办，急～～～～～～～～～～～～