1. Here's how
1.1: Please read step 1.1 and 1.2 in the following article to confirm that your graphics card has got more than 2,000 PassMark points:
Knowledge Base: Which graphics card do you need?
1.2: If so, please install all available Windows updates and the latest driver software for your graphics card and then restart your computer:
1.3: If the problem persists, please download the file TdrDelay_100.reg file below to your Desktop and double-click on it:
Download Link: TdrDelay_100.reg
1.4: In some cases, the error may result from a lack of free file space on the operating system drive, usually C: drive and Windows is suspending a device such as the graphics card. Try increasing free file space above the minimum of 30GB, as in our Knowledge Base article: How do you analyze a Diagnostics Report? section 7. Verify that there is sufficient free space on the harddrive(s)
1.5: When prompted, please click Yes to accept the change to the Windows Registry.
1.6: If none of the steps above solve the problem, please request help at the Lumion Support Center:
Knowledge Base: How do you get technical support?