安装了STEP7_V5.4能正常使用后 安装西门子S7-5.4仿真软件安装不了(S7-PLCSIM V5.4+SP4),提示there are data on your computer which will be deleted the next time you restart the computer ,
this may lead to problems if you reinstall the software,
restart windows and
then start again ,请问怎么搞??急!