Bitcoin Not Starting

[LastBattle]

Until recently my bitcoin client has been working fine. Recently, however I get the following errors when I start it:

---
EXCEPTION: NSt8ios_base7failureE
CAutoFile::read : end of file
C:\Bitcoin\Bitcoin.exe in AppInit()
---
EXCEPTION: NSt8ios_base7failureE
CAutoFile::read : end of file
C:\Bitcoin\bitcoin.exe in CMyApp::OnUnhandledException()
---
This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.

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[LastBattle]

bump

[MilagrosMarriner]

I'm having a similar problem when my computer dies instantly. When I turn on the computer again and I have to delete the blkindex file to make Bitcoin start again.

[LastBattle]

where is blkindex

[zink]

Same problem now on windows 7 64. I recently removed a sata drive from my system but other than that I can't think of what caused it.

[Herodes]

In windows 7

1. Close down the bitcoin client if it is running.
2. Backup your wallet.dat.

It should  reside in  C:\Users\Yourusername\AppData\Roaming\Bitcoin\wallet.dat
Copy it to a safe location.

3. Wipe out everything in C:\Users\Yourusername\AppData\Roaming\Bitcoin\
4. Copy back wallet.dat to C:\Users\Yourusername\AppData\Roaming\Bitcoin\wallet.dat

5. Attempt to start the bitcoin client again. If it starts again, then just patiently wait as the block chain is downloading again, this can take a very long time, so just let it run and be patient.

The bitcoin client should download all blocks and at the bottom it should show the same numbers as the official block count.

Number of blocks can be found here: http://www.bitcoinwatch.com/ , see under Blocks, count.

I would think that the errors you tell us about can come from corrupt data. If the procedure above does not work, then download the bitcoin client again from bitcoin.org and install it again.

Remember to backup your wallet.dat and copy it back though, so you don't lose any coins. When in doubt, always do extra backups.

Good luck, hope this helped!

[noob_jul11]

Bitcoin client is now at 0.3.24 ; so maybe you can reinstall the client to the latest version.

OF COURSE, back up your WALLET.DAT file first.