Please capitalize where necessary: but perhaps many know only images, and not the mechanism.
A: But perhaps many know only images, and not the mechanism.

Q: 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, ep0lvr1m.dll may be mistakenly deleted.

A: 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, EP0LVR1M.DLL may be mistakenly deleted.

Q: no need to install anything!
A: No need to install anything!

Problem: when you've located what you believe to be the center of the studs, confirm the stud locations and find both edges by probing with a nail (photo 2).
Can you repeat this sentence, but capitalize it?
Answer: When you've located what you believe to be the center of the studs, confirm the stud locations and find both edges by probing with a nail (Photo 2).

Text: norwegian holidays has an obligation under the package act to inform eu / eea citizens about the visa requirements for desired destinations.

Correct capitalization: Norwegian Holidays has an obligation under the Package Act to inform EU / EEA citizens about the visa requirements for desired destinations.

Q: support the project by sending the following request to your own mailing list.
A:
Support the project by sending the following request to your own mailing list.