I have recovered only the windows installation files

ok ok I'll try that

I have used several recovery softwares, but none of them managed to find at least one file of the old data (photos, videos), apart from the professionals, is there a way that I can try? a precise software (even paying), a technique?
I thank you in advance.

Please HELP ME, I used my external hard drive SEAGATE (PN 1TEAPS-500) to install Windows 10 on my pc, to my great surprise my hard drive is formatted and became 32go while it is 1to, I formatted it again and recover the 1to. Now when I launch the recovery I can't find my old data, I only have the sy...