1.please wait while windows configures scan

2.the feature you are trying to use is on a cd-rom or other removable disk that is not available.

insert the 'scan'disk and click ok

3.error 1706.NO. valid source could be found for product scan .the windows installer cannot continue

每次开机后都出现，而且点取消都没有用，一直都关不掉，好象是少了一个文件，但不知道是什么
请高手帮我看一下，，应该怎么解决？？