Microsoft continues its operate on the next Windows 10 update, and after this the company is releasing preview build 17686 for users participating in the Fast and Skip Ahead Windows Insider rings.

Something you will notice after installing this build is always Windows 10 now has a improved Region page on the Settings app, so you can modify settings like calendar, can be of the week, dates, time, and currency. Previously, these kinds of options could just be changed out of your classic Key pad, so with this new release, Microsoft gets a step closer to switching entirely into the Settings app.

Additionally, Microsoft just happens to be introducing Local Experience Packs, which are usually nothing more than Microsoft Store apps that bring Windows display language quality improvements. You can get them in Settings > Time & Language > Language > Add a Windows display language with Local Experience Packs.

With the build, Microsoft also introduces more privacy controls, hinting when an application tries to access the microphone in my ballet shoes after you disable it in privacy settings. By using this method, you can assess the settings if you would like, making it slightly faster to adjust privacy configuration.
"Known issues and general improvements"

Also, there are several Windows Mixed Reality improvements, like apps may possibly use the Camera Capture UI API. Just like it's the case of every other build, there are certain other general improvements and known issues, and you'll read these individuals in box when the jump.

A genuine known issue that's worth having in the mind concerns a bug experienced when switching coming from the Fast on the Slow ring.

"If you install any of the recent builds among the Fast ring and change to the Slow ring - optional content particularly enabling developer mode will fail. You must simply remain in fast ring to add/install/enable optional content. The reason being that optional content only will install on builds approved for particular rings. Microsoft xbox not yet been a RS5 build released in the Slow ring," Microsoft explains.

Take into account that this build is figure in progress, and certain other bugs could always be experienced. Redstone 5 is projected to be finalized in September prior to a possible October release.