Please capitalize where necessary: his grandfather died two years later and william came back to live with his mother, but she died shortly after his return and he was sent to live with his father's brothers.
A: His grandfather died two years later and William came back to live with his mother, but she died shortly after his return and he was sent to live with his father's brothers.

Q: nvstor.sys blue screen of death (bsod):normally nvstor.sys missing or having false antivirus like program:win32/baldeaglescreensaver installed, mistaken operation and nvstor.sys modified by virus may lead bsod.

A: nvstor.sys Blue Screen of Death (BSOD):Normally nvstor.sys missing or having false antivirus like Program:Win32/BaldEagleScreensaver installed, mistaken operation and nvstor.sys modified by virus may lead BSOD.

Q: from the transporter room, beam up the number of free spins you've earned.there are wild spock symbols on the 2nd, 3rd, 4th and 5th reels.
A: From the transporter room, beam up the number of Free Spins you've earned.There are Wild Spock symbols on the 2nd, 3rd, 4th and 5th reels.

Problem: propolis: this bee product has strong anti-inflammatory abilities.
Can you repeat this sentence, but capitalize it?
Answer: Propolis: This bee product has strong anti-inflammatory abilities.

Text: you will have to help her choose the dress code to be the most beautiful princess barbie.

Correct capitalization: You will have to help her choose the dress code to be the most beautiful princess Barbie.

Q: historical conditions determine the way man makes subsequent history, but these historical conditions are themselves the result of human actions ...

A:
Historical conditions determine the way man makes subsequent history, but these historical conditions are themselves the result of human actions ...