Please capitalize where necessary: you can maintain a beautiful and healthy hair by knowing what and what not do with it.
A: You can maintain a beautiful and healthy hair by knowing what and what not do with it.

Q: before shrpubw.exe scanning, make sure your pc no virus and trojan. we recommend hitmalware.

A: Before shrpubw.exe scanning, make sure your PC no virus and trojan. We recommend HitMalware.

Q: pieces of origami - dubrava
A: Pieces of origami - Dubrava

Problem: there's others who may take advantage of the common technique of boosting body weight with the use of steroid drugs.
Can you repeat this sentence, but capitalize it?
Answer: There's others who may take advantage of the common technique of boosting body weight with the use of steroid drugs.

Text: the most likely reasons for this are: you entered an incorrect username or password (check the email you were sent when you first registered) or the administrator has deleted your account for some reason. if it is the latter case then perhaps you did not post anything?

Correct capitalization: The most likely reasons for this are: you entered an incorrect username or password (check the email you were sent when you first registered) or the administrator has deleted your account for some reason. If it is the latter case then perhaps you did not post anything?

Text: the cjc™️ tank adaptorwith air filtermakes it easy to install cjc™️ off-line oil filtration systems when there is no drain line from the main system.

Correct capitalization:
The CJC™️ Tank Adaptorwith Air Filtermakes it easy to install CJC™️ Off-line Oil Filtration Systems when there is no drain line from the main system.