harddisk deletes os itself

i purchased seagate pipeline hdd 500gb a month ago..indtalled a windows 7 32 bit os. but next day when i booted up pc..there was no os error..
i again installed windows 7
again next day no os error...i again installed os

but the point is why....
why this problem is there...why harddisk formats itself?
please help

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Reply to: harddisk deletes os itself
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Re: OS deleted

I wonder what was deleted. What's on the disk if you look from Linux? Look immediately after the install, and the next day and compare the results.
What is the exact error message?

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not formating itself

it is not formatting itself. sounds like something else. If you have a legit win7disk, you can do a startup repair using it. if it does not help give more info about the win7 disk. is it one that came with the computer or from another, it is original or burned copied? is it an upgrade, retail or oem disk?

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The Seagate Pipeline HDDs were made starting 2011.

I worry here that this HDD is very old. There could be other things going on here but does the same thing happen with all other drives?

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Found another issue.
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Tell the background

Why are you replacing the hdd?

Why did you buy a hdd that is the cheapest of the cheap and was designed for a dvr?

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