Please capitalize where necessary: rather it is present in the hard drive itself until it is overwritten.
A: Rather it is present in the hard drive itself until it is overwritten.

Please capitalize where necessary: they were married on may 7, 1948.
A: They were married on May 7, 1948.

Please capitalize where necessary: my vocal chord just got a bit hoarse this sunday morning.
A: My vocal chord just got a bit hoarse this Sunday morning.

Please capitalize where necessary: the outdoor unit is installed outside the house, and pumps out the warm air. split acs are quieter and have better air distribution than other models.
A:
The outdoor unit is installed outside the house, and pumps out the warm air. Split ACs are quieter and have better air distribution than other models.