Please capitalize where necessary: lesson number nine can be summed up in one word: perspective.
A: Lesson number nine can be summed up in one word: perspective.

Q: hi, my name is candyxxx and i am 48 years.

A: Hi, my name is Candyxxx and I am 48 years.

Q: program modification: sometimes, not only virus backdoor:win32/badrat.f or malware system watch 2002 but also common softwares possessing the ability to modify the inner functions of ehentt.dll, which means other programs can't find this dll file again.
A: Program Modification: Sometimes, not only virus Backdoor:Win32/Badrat.F or malware System Watch 2002 but also common softwares possessing the ability to modify the inner functions of ehentt.dll, which means other programs can't find this DLL file again.

Problem: guests have access to private parking.
Can you repeat this sentence, but capitalize it?
Answer: Guests have access to private parking.

Text: in this case, be sure to set up your computer correctly to receive testing security updates, especially if you run testing on a server.

Correct capitalization: In this case, be sure to set up your computer correctly to receive testing security updates, especially if you run testing on a server.

Text: in the even longer term, additional increases in resource efficiency may be called for.

Correct capitalization:
In the even longer term, additional increases in resource efficiency may be called for.