hard disk is not booting .but it works as drive

I AM MKING

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Jun 3, 2014
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4,510
i have connected both 1 tb and 37 gb hard disk. but after (ctrl+alt+del) restart i'll press f11 (boot menu) and select 37 gb drive (windows 7 32 bit ) and it works. it ask to chouses windows 7 or 8.1( in 1 tb i installed 8.1 64 bit.)
and i'll select windows 8.1 64 bit which installed in 1 tb and it works .

my qusestion is y 1 tb is not directly not get booted . what will be the reason
 

I AM MKING

Reputable
Jun 3, 2014
12
0
4,510


dude i already try'd . it getting boot mgr is missing . in 1 tb hd