I thank you so much for responding I appreciate it so much, and apologize for me being late.
I used the two tools just like you said,
then I tried to download avira from Kioskia but it didn't get downloaded as a program, but as a file with a name "22.214.171.1249cookie" that I didn't know how to use
I tried to re-download the file but the same happened
then, downloaded the program from Avira website , it got downloaded but again it didn't get installed .!!