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Copy file failed 8000B40000 - Printable Version

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Copy file failed 8000B40000 - minddragon - 09-12-2015

Getting this random error.

I have a Windows 10 trying to make a Windows 7 to go from a Windows 7 ISO to a USB 3.0 32gb (very fast) disk.

[Image: FwJbGl4.png]

Please advise .......


RE: Copy file failed 8000B40000 - admin - 09-12-2015

(09-12-2015, 02:15 AM)minddragon Wrote: Getting this random error.

I have a Windows 10 trying to make a Windows 7 to go from a Windows 7 ISO to a USB 3.0 32gb (very fast) disk.

[Image: FwJbGl4.png]

Please advise .......

It is usually caused by a anti-virus software, so you can temporarily deactivate your anti-virus software, and try again.


RE: Copy file failed 8000B40000 - minddragon - 09-12-2015

I'm running Windows 10 with Windows Defender (plain vanilla install)...Not sure how to turn that off?


RE: Copy file failed 8000B40000 - admin - 09-12-2015

Please try it on another computer, thanks.


RE: Copy file failed 8000B40000 - toddk63 - 10-14-2015

Double check the checksum hash of your Win 7 ISO. I had the same error and thought I had verified the checksum. Decided to verify it "again". It didn't match. Downloaded the ISO from another source. Checksum matched. WintoUSB installed it flawlessly.


RE: Copy file failed 8000B40000 - admin - 10-14-2015

Thanks toddk63. And this is may caused by a anti-virus software, so you can temporarily deactivate your anti-virus software, and try again.


RE: Copy file failed 8000B40000 - toddk63 - 10-15-2015

admin Wrote:Thanks toddk63. And this is may caused by a anti-virus software, so you can temporarily deactivate your anti-virus software, and try again.

That may work, but be careful.  If checksums don't match those published by M$., it means the ISO has been modified.  It could be a useful tweak or a malicious Trojan.  Best to stick with the original M$ release.