Solved No mbr found on hard drives

January 7, 2013 at 10:26:55
Specs: Windows 7

I have two hitachi 1tb drives that were previously used as single drives in IDE mode. That was on WinXP 64-bit. I want to do a clean install of Win 7 64-bit. I tried to repartition the drives and reformat them using ntfs. Windows 7 installation gives me an error " no MBR present". It won't allow me to format the drives so I can install Win 7 64-bit. Is there anyway that I could recover the MBR so that I can use these drives again? I hate to lose 2 1 TB drives that are fairly new.

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#1
January 7, 2013 at 10:44:20

They need partitioning (even if it is only one partition) before format.

Always pop back and let us know the outcome - thanks


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#2
January 7, 2013 at 10:59:48
✔ Best Answer

You should be doing this during the windows 7 install where you have the option to wipe, repartition and format the OS drive. Don't bother formatting the second drive until after you have installed the OS then you can use disk management to partition adn format the 2nd drive.

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#3
January 7, 2013 at 11:42:09

Wipe out all partitions, create one or more new ones, then format using NTFS. Use 3rd party software, not the Win7 disc. This will prevent the creation of the hidden 100MB boot partition.

http://www.ultimatebootcd.com/


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Related Solutions

#4
January 7, 2013 at 13:18:31

I would suggest 100mb is nothing and for someone that is already having difficulties getting a mbr its best to accept the win 7 install defaults.

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#5
January 7, 2013 at 16:35:12

wanderer

The issue with the 100mb partition isn't the space but the fact that it is on of your allowed primary partitions. For most users this may not present problems but most users don't need that partition either.


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#6
January 7, 2013 at 19:14:45

That 100mb partition is the "Reserved" partition and I have found that the system will not boot without it. That is an interesting suggestion you make riider in #3 but will the system boot without it in view of the difficulties I have had when I failed to include it in an image which I restored?

My system is also 64 bit and I never had this difficulty restoring 32 bit images.


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#7
January 7, 2013 at 21:17:54

That's an interesting point about saving a primary partition allocation. Windows will do just fine without the SR partition as long as it is installed that way. If it is installed with defaults, then it must have the partition, or I guess you could use the repair disk to rebuild the BCD on the main partition - or use EasyBCD to do it.

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