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Mako regever
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January 15, 2013, 09:00:50 AM
 #1

Hye

I've got very serious problem with my wallet and I would donate 3 bitcoins to the one(s) who could help me,

My computer was stuck, while I run my client (I have client-qt). I turned off the computer and turn on again.
when I tried to open the client, I've got error meesage: 'error in downloading the file 'blkindex.data''.

What can I do to recover my wallet?


appreciate your help


Mako
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hashkey
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January 15, 2013, 09:08:58 AM
 #2

If you're on Win 7, go to C:\Users\your_username\AppData\Roaming\Bitcoin then backup the wallet.dat file.

EDIT:

Or if you're on Win XP, go to C:\Documents and Settings\your_username\Application data\Bitcoin then backup the wallet.dat file.

After making sure that you have successfully backed-up your wallet.dat file (at least make 2 backup copies on different mediums ie. flash drives and in a folder in your hard drive) from the directories that I have mentioned above, delete everything inside the Bitcoin folder, then paste a copy of the wallet.dat file inside that Bitcoin folder (from where you copied that file) and then run the bitcoin-qt client again. You'll have to wait for the blockchain to be downloaded again to view the total number of bitcoins you own.

DannyHamilton
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January 15, 2013, 04:56:21 PM
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If you're on Win 7, go to C:\Users\your_username\AppData\Roaming\Bitcoin then backup the wallet.dat file.

EDIT:

Or if you're on Win XP, go to C:\Documents and Settings\your_username\Application data\Bitcoin then backup the wallet.dat file.

After making sure that you have successfully backed-up your wallet.dat file (at least make 2 backup copies on different mediums ie. flash drives and in a folder in your hard drive) from the directories that I have mentioned above, delete everything inside the Bitcoin folder, then paste a copy of the wallet.dat file inside that Bitcoin folder (from where you copied that file) and then run the bitcoin-qt client again. You'll have to wait for the blockchain to be downloaded again to view the total number of bitcoins you own.

hashkey explained it well, but it is worth repeating...

The wallet.dat file has all of your private keys in it.  If you lose the most recent good copy of that file, you will probably lose bitcoins.  If you loose all copies of that file you will lose all of your bitcoins.  If you think you made a copy of the correct file, but you made a mistake and copied the wrong file you will lose all of your bitcoins.

As long as you have a recent enough good copy of wallet.dat (or a valid list of all the private keys), your bitcoins will be recoverable.

One last warning:  Be very careful when doing anything with your wallet.dat file.  If you damage or lose it, you will lose your bitcoins permanently.

Gabi
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January 15, 2013, 05:09:33 PM
 #4

Sounds like a corrupted blockchain, sometime it happens. As other said, backup your wallet.dat and delete the files (you don't need to delete wallet.dat btw...) and start the client, it will re-download the whole blockchain but the problem will be solved.
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