[Bug 921208] Re: win7/x64 installer hangs on startup with 0x0000005d.

[Brendan Dolan-Gavitt]

The initial bluescreen is caused because of unsupported CPU feature bits
(the DE flag, specifically). The experimental patch Clemens mentioned is
here:

http://lists.gnu.org/archive/html/qemu-devel/2012-09/msg01412.html

Past that, however, there is a bug in QEMU's self-modifying code support
that causes trouble with PatchGuard and results in a different BSOD.
Patrick Hulin did some work debugging and fixing this:

http://lists.gnu.org/archive/html/qemu-devel/2014-08/msg02161.html

After that, 64-bit Windows 7 will run correctly under TCG. However it
should be noted that his patch introduces other problems – e.g., running
Paint Shop Pro 8.0 on Windows 7 32-bit will now crash on startup.

So there is no proper fix yet, but for some use cases these patches may
suffice.

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Title:
  win7/x64 installer hangs on startup with 0x0000005d.

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