I have a Temp folder in the c: \ Users \ Vitaliy \ AppData \ Local \ Packages \ Adobe.CC.XD_adky2gkssdxte \ AC \ Temp \. It takes more than 20 GB can I delete the files in it and how? Screen: http://prntscr.com/ey4mdd
You can delete all the files in the AppData\Local folder by going into Windows Settings -> System -> Apps & features -> Adobe Experience Design CC (Beta) -> Advanced Options -> Press Reset.
Please note that you can lose temporary unsaved files opened in XD, so before doing this, you should make sure that you saved all your work to files on the disk.