添加和删除程序这个窗口打不开，该怎么办？

不可能吧..答案证确,只是你可能没有空行吧.. 单击运行,然后输入cmd.然后在提示符下依次输入:
regsvr32 appwiz.cpl
regsvr32 mshtml.dll
regsvr32 jscript.dll
regsvr32 msi.dll
regsvr32 "c:\program files\common files\system\ole db\oledb32.dll"
regsvr32 "c:\program files\common files\system\ado\msado15.dll"
regsvr32 mshtmled.dll
regsvr32 /i shdocvw.dll
regsvr32 /i shell32.dll
输入完后,重起电脑.