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I have a really strange problem. I have a new laptop (no guaranty) and everytime after a clean installation everything is perfectly fine. But when the laptop is powered off for a couple of hours I get this error:

The file may be corrupt. The file header checksum does not match the computed checksum

Also some other errors are thrown like:


It seems that something is corrupted at the moment when the power is off. But how is this possible?

So far I've tried:

  • replacing ram (no effect)
  • other harddrive (no effect)
  • I tried 3 different OS (XP, Vista and windows 7)

It's a Toshiba Satellite A300d notebook.

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up vote 1 down vote accepted

This error occurs when either of the following conditions is true:

The Windows Boot Manager (Bootmgr) entry is not present in the Boot Configuration Data (BCD) store.

The Boot\BCD file on the active partition is damaged or missing.

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True, but why is this happening? It's a clean installation, new ram and harddisk. – Chris Feb 20 '10 at 13:36
Heres a reasonably thorough explanation: To do with BIOS boot order during installation of V/7.. XP should have worked though. Odd indeed. – Grizly Feb 20 '10 at 14:34

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