Please capitalize where necessary: registration 19 february 2011 07:33
A: Registration 19 February 2011 07:33

Please capitalize where necessary: recently i reinstalled the os on my mac computer and after successful completion, i connected this external lacie hard drive to copy my backup files.
A: Recently I reinstalled the OS on my Mac computer and after successful completion, I connected this external LaCie hard drive to copy my backup files.

Please capitalize where necessary: china is about as large as the usa or brazil, and about 20 times larger than sweden. height differences in china are large, about 40% of the surface is over 2000 meters and many peaks over 8000 meters.
A: China is about as large as the USA or Brazil, and about 20 times larger than Sweden. Height differences in China are large, about 40% of the surface is over 2000 meters and many peaks over 8000 meters.

Please capitalize where necessary: queens guest house is a 10-minute walk from edinburgh castle. edinburgh waverley station and the royal mile are a 15-minute walk away.
A:
Queens Guest House is a 10-minute walk from Edinburgh Castle. Edinburgh Waverley Station and The Royal Mile are a 15-minute walk away.