question: mpr.dll device can't work/no sound: actually, in most cases device problem is because of .sys files.
Capitalize this past sentence correctly.
A: mpr.dll device can't work/No sound: Actually, in most cases device problem is because of .sys files.

question: the paphos post. message board where tourist experiences are exchanged - like e.g. restaurants.
Capitalize this past sentence correctly.
A: The Paphos Post. Message board where tourist experiences are exchanged - like e.g. restaurants.

question: avoid compressing ost file using third party tool as it might damage its contents
Capitalize this past sentence correctly.
A: Avoid compressing OST file using third party tool as it might damage its contents