If you are having only one drive, means the drive contain OS and data . it wil loose. If you are having separate drive for data and OS and format only C drive . then data will be secure. Better keep keep at least two drive and one is for OS and another one is for data.. Hope you will succeed
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If you are having only one drive, means the drive contain OS and data . it wil loose. If you are having separate drive for data and OS and format only C drive . then data will be secure. Better keep keep at least two drive and one is for OS and another one is for data.. Hope you will succeed