Got the same issue, I've checked virtual memory (I've had that issue previously so have it custom set anyway), I have been though the power settings, I've run registery cleaners and checked of Malware. It's this build for whatever reason, gladly I can delay the update for 365 days so I'll roll it back again.
This update is also causing a lot of issues with my display adapater drivers, I've not idea if the two issues are linked but this update knocks out my normal monitor's display driver in favour or my second screen (I've read elsewhere its because my monitor is using a DVI port and my other screen is HDMI), it also happens when I update my drivers when the update deletes my previously installed drivers my monitor goes black then never recovers. So in order to fix this I have to get my settings across to the other screen blind and then change my primary monitor or duplicate my displays and the reinstall my graphics drivers which fixes the issue. It's obviously a issue with the 1709 update over writing the display drivers or disabling the DVI port. Its because of this I know I can roll my system back because I had to do that the first time I ran the update then I researched into what was going on.
I'm really not sure what the hell Microsoft are thinking with this update but its utterly flawed and for what? Some stupid applications I'd rather not have, oh and the joy of all my custom settings (especially in regards to advertising and privacy) being reset as it always does with a major update. Honestly I've not idea why we can't actively choose which features we want running with our OS, its rediculious. All other software I use on my system I do so by choice, if I want a 3d program then I'll get one, by all means offer it as a free feature app for those interested but otherwise beyond those programs specifically required by the OS to function to relay information to the user and a browser, I'd far rather choose my own software and not have my system clogged up.
Honestly I'm really fed up with this, I had massive issues when I initially switched to windows 10 but I persited because of direct x12 however its becoming a serious grind as it feels like every other update causes a new wave of system stability issues. It's no wonder Apple is eating up market share like crazy, if your not a PC enthusiast then why stick around really?