Windows 10 build 10543

{{ Infobox Windows build
 * version = 10 version 1511
 * buildtag = 10.0.10543.0.th2_shell2_dev_cortana.150910-1700
 * sku = Enterprise
 * bios = 2015-09-11
 * timebomb = 2016-07-15 (+320 days)