请问这些文件夹里的东西能删除吗???

请问这些文件夹里的东西能删除吗???

C:\Documents and Settings\All Users\Application Data

C:\Documents and Settings\Administrator\Application Data

C:\Documents and Settings\Administrator\Local Settings\Temp

C:\MSOCache\All Users

用户系统信息:Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; TencentTraveler 4.0; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; InfoPath.2)