Good evening everybody! As title says I have problem with my new Oukitel k6000 Pro (Android 6.0, pluged into Windows 10 Pro 64-bit). What happens: After first connection to PC everything went well - device appeared in explorer and in Device Manager as K6000 Pro and I could manipulate with it just as with any other Android device. This lasted exectly to time when Windows finished their Installation of new device, which started automatically after I pluged in my cellphone. After that phone disappeared from explorer and in Device Manager appeared as Unknown Device. What did I try: Rollback to original driver - impossible, Uknown device has it greyed out. Update driver - 1) automatically it doesn't work, installation is unfinished with error: a service installation section in this inf is invalid. 2) for manuall instalation of another driver I didn't find any for this type of phone Uninstall driver and plug phone back in - doesn't work. After uninstall and plug in phone won't even appear correctly again, only Installation of new device will procede and Uknown Device is back again in Device Manager. However I tried to reinstall whole Windows (twice just now) and after first plugin everything again worked fine untill Windows finished their installation. Install universal USB drivers - no effect. Forbid Windows to install automatically new devices - no effect. Either I did it wrong or it just doesn't work, Installation of new device proceeded as usual. Tried different cable - no effect. Contact Oukitel - no effect. Cry here for help - still have some hope. Just now I runned out of ideas - any suggestions how to proceed next?