then said i, my lord, what are these? the angel who talked with me said to me, i will show you what these are.

How would the previous sentence be correctly capitalized?
Answer: Then said I, my lord, what are these? The angel who talked with me said to me, I will show you what these are.
the revolutionary qd5 file analysis tool™ scans, analyzes, and reports back every detail about your qd5 file.

How would the previous sentence be correctly capitalized?
Answer: The revolutionary QD5 File Analysis Tool™ scans, analyzes, and reports back every detail about your QD5 file.
uninstallation: as dll files are created to support other programs and softwares working well, the data and functions are actually shared by many programs. when you uninstall a program, angelusb.sys may be mistakenly deleted.

How would the previous sentence be correctly capitalized?
Answer: Uninstallation: As DLL files are created to support other programs and softwares working well, the data and functions are actually shared by many programs. when you uninstall a program, AngelUsb.sys may be mistakenly deleted.
i am polish and live in the uk.

How would the previous sentence be correctly capitalized?
Answer: I am Polish and live in the UK.