Please capitalize where necessary: rights: the photos remain with all rights owned by the sender.
A: Rights: The photos remain with all rights owned by the sender.

Please capitalize where necessary: since that time and there was a wildly popular only because of the cosmos.
A: Since that time and there was a wildly popular only because of the cosmos.

Please capitalize where necessary: since the taliban also does not approve of alcohol, a cold 6-pack beside your seat is further proof of your anti-taliban sentiment.
A: Since the Taliban also does not approve of alcohol, a cold 6-pack beside your seat is further proof of your anti-Taliban sentiment.

Please capitalize where necessary: accidentally formatting iomega external hard drive without keeping its backup
A:
Accidentally formatting Iomega external hard drive without keeping its backup