hard drive detect in bios but not in window

Recently my pc hanged and task manager is also not working so i restart it and after it it can not boot showing 4th master error during hard drive checking. so i make bootable pendrive and boot from it and try to repair windows but cant find previous operating system. so i remove my hard drive and connect it to another working pc.while booting in bios i show that my second hard drive is detected but when i open my computer it not showing there.so i open device manager and under drive there is also 2 hard drive shown.so go to disk management and in it second hard drive is detected but showing uninitialized and size is also showing less 3gb something.
os-win 7 64 bit
hard drive
in bios hard drive is detected but size shown 0 gb
data is important so cant format data is in D: and E: drive

how to recover my data
2 answers Last reply
More about hard drive detect bios window
  1. Right here: http://www.majorgeeks.com/mg/sortname/data_recovery_233b.html there are few data recovery programs, you may need to use 2 or more to recover data, none is 100% proof. Not even professional services can not guarantee that.
  2. Hi there patel_karan,

    Unfortunately, it seems that the drive has failed. :(
    As it shows a 0 GB under BIOS, I doubt that you will be able to access the data. This usually indicates some physical problem. In that case, you will need to contact a data recovery company.

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