does constant format the hard drive and reinstal the windows hurt the hard drive (hdd)

Solution
No, it won't hurt the drive. Hard drives fail primarily due to mechanical defects, mechanical abuse, and power spikes. The drive doesn't know that it is being formatted, it just experiences the write load of the reinstallation, which is not a particularly heavy load.
No, it won't hurt the drive. Hard drives fail primarily due to mechanical defects, mechanical abuse, and power spikes. The drive doesn't know that it is being formatted, it just experiences the write load of the reinstallation, which is not a particularly heavy load.
 
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