I couldn't explain simpler than that! please see this link . there are introduced 2 applications in the pdf file. I can not download them because there is not any link to them! I use jdeveloper 12.2.1.2.

Thank you for responding me, It seems I made a mistake and I know nothing about this excel file. you told me look it up at system sheet, but I found nothing useful. I think I do not know how to interpret this file. would you mind teaching me how that is ? Sincerely.

in this picture I saw windows 7 sevice pack 1. the file I looked into is "fmw-122120-certmatrix-3254735.xlsx" donwloaded from oracle. sheet "client". maybe my problem is with data base because I didn't install it as plugable. am I right?

Actually I was disappointed with the machine and removed it completely! because I had done the same thing two or three times and the same error arose. Maybe you are right after looking the certified OS with oracle BI 12.2.1.2 I decided to install on windows 7.s1. I hope it works for me. Sincerely.