Please capitalize where necessary: this is important, should strive for parents.
A: This is important, should strive for parents.
Q: activity period from 18 september 2015 until 20 september 2015

A: activity period from 18 September 2015 until 20 September 2015
Q: not only the castle with probably the world’s most beautiful civil registry office enchants its visitors but also the garden which by order of archbishop johann ernst thun was designed by fischer von erlach in about 1690: sculpture groups, the whimsical "dwarf garden", magnificent flower arrangements, the maze and the hedge theatre leave a lasting impression on all visitors.
A: Not only the castle with probably the world’s most beautiful civil registry office enchants its visitors but also the garden which by order of archbishop Johann Ernst Thun was designed by Fischer von Erlach in about 1690: Sculpture groups, the whimsical "dwarf garden", magnificent flower arrangements, the maze and the hedge theatre leave a lasting impression on all visitors.
Problem: hpz3rw72.dll device can't work/no sound: actually, in most cases device problem is because of .sys files.
Can you repeat this sentence, but capitalize it?
Answer: hpz3rw72.dll device can't work/No sound: Actually, in most cases device problem is because of .sys files.
Text: here are the different stages to achieve an origami of tiger:

Correct capitalization: Here are the different stages to achieve an origami of tiger:
Problem: elements of the old government tried to secure the release of people arrested at the orders of the committee.
Can you repeat this sentence, but capitalize it?
Answer:
Elements of the old government tried to secure the release of people arrested at the orders of the Committee.