first you should enter bios to detect or manually enter new hard drive parrameters . then save , reboot ,for dos & win 3 + , simply start with dos disc 1 , then win , cdrom disc , then all other software .
if win 95 cd or greater , you should usea boot disk , make sure in bios - boot up option for a: is selected , some mother boards dont support cd rom boot , but most do now days .
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reloading hard drive