Please capitalize where necessary: frozen mackerel "scomber scombrus, scomber australasicus, scomber japonicus"
A: Frozen mackerel "Scomber scombrus, Scomber australasicus, Scomber japonicus"

Q: when it's deleted by panda cloud antivirus, the infected dll file would be removed too.

A: When it's deleted by Panda Cloud Antivirus, the infected DLL file would be removed too.

Q: register to contact xdate.co.uk members!
A: Register to contact xDate.co.uk members!

Problem: the fastest and easiest way to open your xfo file is to double-click it.
Can you repeat this sentence, but capitalize it?
Answer: The fastest and easiest way to open your XFO file is to double-click it.

Text: remove protection from work files

Correct capitalization: Remove protection from work files

Text: our 'user' machines run, in approximate order of descending number, windows, riscos, linux (debian, red hat, mandrake), macos, hp unix.

Correct capitalization:
Our 'user' machines run, in approximate order of descending number, Windows, RiscOS, Linux (Debian, Red Hat, Mandrake), MacOS, HP Unix.