I am trying to attach the WinDBG to particular process but I constantly get the error below : enter image description here
I am using win 7 x64 and am trying to debug x64 application. I run the IDA Pro with admin privileges. I have run the application both with admin privilege and the user one. I even tried to run it on different windows user account with admin privilege but I still get the same error.

  • The target process may have anti-attach protection. See this post.
    – 0xec
    Aug 29, 2015 at 16:59
  • @ExtremeCoders The problem is I can easily attach to the process in x64_DBG. This issue occurs only in IDA Pro
    – FreeMind
    Aug 29, 2015 at 17:14
  • Are you using IDA x64?
    – rev
    Aug 29, 2015 at 17:15
  • @AcidShout Yes I am using IDA x64
    – FreeMind
    Aug 29, 2015 at 17:15

1 Answer 1


AFAIK you cannot debug a 64 bit application locally with IDA Pro.
You need to use remote debugging.

See this page: https://www.hex-rays.com/products/ida/debugger/#details
and this: https://www.hex-rays.com/products/ida/debugger/cross-win-linux/win32towin64.shtml

  • I am win7 x64 - Should I run the IDA on VMware x86 OS and then make remote debugging on my x64 application through VMware? What would the scenario for my situation?
    – FreeMind
    Aug 29, 2015 at 18:17
  • @FreeMind You can copy the debugging server win64_remotex64.exe to the target machine(x64). Now in the other VM(32/64), run IDA 64, and use attach to remote win64 to debug.
    – 0xec
    Aug 29, 2015 at 18:23
  • Where is win64_remotex64.exe located at? I have checked C:\Program Files\Windows Kits\8.1\Debuggers\x64 but there is no file over there.
    – FreeMind
    Aug 29, 2015 at 18:27
  • 1
    @FreeMind win64_remotex64.exe is a part of IDA. Check within your IDA installation directory.
    – 0xec
    Aug 29, 2015 at 18:29

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