I'm using AWB as on Windows 10. I've previously updated AWB several times without major problems. However, this time the AWBUpdater.exe would not update me past version 126.96.36.199 on it's own. I manually uninstalled, downloaded, and re-installed with version AutoWikiBrowser 188.8.131.52 (SVN 12004 (2016-04-18 21:56:07) from SourceForge (http://sourceforge.net/projects/autowikibrowser/). It installed fine, and allows me to use the AWB program. However, if I try to update it it tells me there is an optional update available... but will not actually update to that version. It cycles through all the "please wait while we download, etc" stuff without any obvious errors, but it doesn't actually change anything on my computer. Running as Administrator doesn't change the outcome. My AWBUpdater is version 184.108.40.206 if that helps.
I should also probably mention that I named the AWB folder "AutoWikiBrowser" and keep it in the "C:\Users\<UserName>\Documents\AutoWikiBrowser" folder, although that shouldn't make a difference.