Cannot install driver: error 800700C1 Sysprogs forums › Forums › WinCDEmu › Cannot install driver: error 800700C1 Tagged: Install failed This topic contains 0 replies, has 1 voice, and was last updated by kgursu 9 months ago. Log In Register Lost Password Viewing 1 post (of 1 total) Author Posts December 21, 2018 at 00:38 #23121 kgursuParticipant Hi, I’m new to your software. The install version cannot install its driver, whereas the portable version seems to work. How to fix this? I already saw a topic posted before, but there is no answer to it. Thanks. Attachments:You must be logged in to view attached files. Author Posts Log In Register Lost Password Viewing 1 post (of 1 total) You must be logged in to reply to this topic.