Hello, I am new to time machine, never used this option even though have Mac since almost a year, not needed but needed now. So I have external HD that was using with my other windows machine and it's got good amount of data and also it's got good space (almost 350 gb free space). Not sure if some one went thru this situation. looking for suggestions, how to use current HD that I was using with windows (will not be using with windows again, since my widows machine died while ago) without losing current data for time machine on Mac. Appreciate your advices . Thanks.