Problems installing Rstudio windows7 32bits

(windows 7 32bits)
I've downloaded the R3.6.0 version and the Rstudio Desktop 1.1.463 but I can't install it .. The letters of the words at the installation window are random characters and after completing the installation I try to open it but I have to install it again.Then I've downloaded the R3.4.4 version but still the same issue. As far as I understand ,this is a compatibility issue but I cant start downloading every R version till I find the one.

Its urgent to have it installed till tomorrow
Thanks for your time