Windows 7 64bit

[IWantMyTwoDollars]

I've got a new laptop, it has Windows 7 64 bit, and an Intel Core i7 CPU.  It supports 8 threads.  I am an administrator on the PC.

Bitcoin won't work properly.  I install it, and it runs, compiling its blockchain.  At some point (past 80%), it crashes.  It will never run again after that; it shows a Visual C++ error thereafter.

I tried wiping c:\users\myusername\appdata\roaming\bitcoin and reinstalling.  Again, after it loads the database for a few hours, crashes forever after.

Note that the problem occurs with either my "real" wallet.dat, or the new wallet.dat it automatically creates.

Also, if I manually copy in the blockchain database, same problem.  I can copy it from my old PC, or directly download it, same problem.

Running the program As Administrator does not help.  Running the program in XP Compatibly Mode does not help.

I found one fix:  If I run a virtual XP machine on the new PC, it works OK within the XP virtual machine.

Anyone have any ideas?  It looks to me like Bitcoin won't work on Windows 7 64 Bit with Core i7.

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[Kluge]

Works fine here on Win7 x64. Don't know why the i7 would be a problem, but I'm certainly no expert. Quickfix might be to use Electrum or some other thin client instead.

[IWantMyTwoDollars]

Thanks Kluge.  It does work OK though on my XP Virtual Machine (on the same PC).  I installed the one from Oracle, and then 32 bit XP within the VM.

i7 is a very common CPU, it seems like others would have had a problem.

[Stephen Gornick]

Anyone have any ideas?  It looks to me like Bitcoin won't work on Windows 7 64 Bit with Core i7.

Which version of the client?  There is now v0.5.3, so make sure you are trying with the most recent release.

Do you have another Win7 x64 computer where you can copy the data over to to see if the problem persists there?  If not, perhaps zip it up (when using only an empty wallet, of course) and see if someone else w/ Win7 x64 would be willing to do some troubleshooting [Update: troubleshooting against your set of data.]

[neo_rage]

W7x64 works ok.

Are you use latest version of bitcoin?

[IWantMyTwoDollars]

I've tried version 0.5.2, and also the 0.6.? alpha version.

I have not yet tried the 0.5.3.