我的笔记本电脑现在开机后，设置的背景被一个白背景自动代替了。不管我怎么改都无法显示设置的背景。
以下是我右键点击白背景，选择“查看原文件”的内容：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!----
***** This file is automatically generated by Microsoft Windows *****
--------><HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=gb2312"></HEAD>
<BODY bgColor=#004e98>
<DIV style="BACKGROUND: url(
file:///C:/Documents%20and%20Settings/judith%20gao/Local%20Settings/Application%20Data/Microsoft/Wallpaper1.bmp) no-repeat 50% 50%; LEFT: 0px; WIDTH: 1024px; POSITION: absolute; TOP: 0px; HEIGHT: 768px">
</DIV>
<IFRAME id=0 style="BACKGROUND: none transparent scroll repeat 0% 0%; LEFT: 0px; WIDTH: 1024px; POSITION: absolute; TOP: 1px; HEIGHT: 737px" name=DeskMovrW marginWidth=0 marginHeight=0 src="
file:///C:/WINDOWS/Web/desktop.html" frameBorder=0 scrolling=no subscribed_url="C:\WINDOWS\Web\desktop.html" resizeable=""> </IFRAME>
</BODY>
</HTML>
谁帮我解决一下啊？我想找回原来的背景。这个是病毒吗？