Please capitalize where necessary: apart from recycle bin recovery, you can undelete files from usb drives, hard drives, flash drives, sd cards, firewire devices etc.
A: Apart from Recycle Bin recovery, you can undelete files from USB drives, hard drives, Flash drives, SD cards, FireWire devices etc.

Please capitalize where necessary: the toxin can then pass into the bloodstream and cause a serious poisoning there.
A: The toxin can then pass into the bloodstream and cause a serious poisoning there.

Please capitalize where necessary: he translated descartes ' geometrie into german and this was published by mayer and muller, berlin, in 1894.
A: He translated Descartes ' Geometrie into German and this was published by Mayer and Muller, Berlin, in 1894.

Please capitalize where necessary: their second child, andrei, became an algebraic number theorist while their third child was sergei, the subject of this biography.
A:
Their second child, Andrei, became an algebraic number theorist while their third child was Sergei, the subject of this biography.