Please capitalize where necessary: should a quality issue arise, the quality control teams follow a very strict procedure.
A: Should a quality issue arise, the quality control teams follow a very strict procedure.

Q: when it's deleted by kaspersky pure, the infected dll file would be removed too.

A: When it's deleted by Kaspersky PURE, the infected DLL file would be removed too.

Q: individuals with surname vatter
A: Individuals with surname VATTER

Problem: unsure about which type of xfn file you have? do you want to know exactly what it is, who created it, and how to open it?
Can you repeat this sentence, but capitalize it?
Answer: Unsure about which type of XFN file you have? Do you want to know exactly what it is, who created it, and how to open it?

Text: atherosclerosis is a gradual process whereby hard cholesterol substances (plaques) are deposited in the walls of the arteries.

Correct capitalization: Atherosclerosis is a gradual process whereby hard cholesterol substances (plaques) are deposited in the walls of the arteries.

Text: morning temperatures will be around 18 c. during the day they will reach a maximum of 22 c. low temperatures at night will be around 17c. northerly winds will be moderate to brisk with strong gusts.

Correct capitalization:
Morning temperatures will be around 18 C. During the day they will reach a maximum of 22 C. Low temperatures at night will be around 17C. Northerly winds will be moderate to brisk with strong gusts.