\nIndeed, starting with Windows 8, you need a processor that supports NX\/PAE\/SSE2.
\nNX is not supported with older windows QEMU versions.
\nMore details from MS here<\/a>.<\/p>\n
Googling around it appeared the solution was to use the -cpu command line parameter with QEMU.
\nUnfortunately, none of the QEMU versions I had was supported that parameter.<\/p>\n
I then found the right (and latest) windows QEMU version (2.0.0<\/strong>) here<\/a>. Also, note the use of coreinfo <\/a>(from sysinternals) to check your processor flags.<\/p>\n Lately I had been testing a lot Windows 8.1 and WinPE generated from Windows 8.x (i.e WinPE 4.0, 5.0, 5.1). The Windows QEMU I had (lots of versions out there) was giving me a windows error 0x0000005d which means\u00a0UNSUPPORTED_PROCESSOR . Indeed, starting with Windows 8, you need a processor that supports NX\/PAE\/SSE2. NX is not […]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"class_list":["post-1150","post","type-post","status-publish","format-standard","hentry","category-winpe","category-21-id","post-seq-1","post-parity-odd","meta-position-corners","fix"],"_links":{"self":[{"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=\/wp\/v2\/posts\/1150","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1150"}],"version-history":[{"count":3,"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=\/wp\/v2\/posts\/1150\/revisions"}],"predecessor-version":[{"id":1161,"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=\/wp\/v2\/posts\/1150\/revisions\/1161"}],"wp:attachment":[{"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1150"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1150"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1150"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nI downloaded this version\u00a0qemu-w32-setup-20140418.exe<\/a>.
\nThe command line : start qemu-system-i386.exe -L .-m 512-cdrom D:\\WinPE5.1.iso-cpu Nehalem<\/code> allowed me to boot my latest Windows 8.1 with success ! \ud83d\ude42<\/p>\n![\"qemu_nx2\"](\"https:\/\/labalec.fr\/erwan\/wp-content\/uploads\/2014\/05\/qemu_nx2-300x153.png\")
<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"