AutoCad Lt 2021 loading screen then nothing

[Anonymous]

I've just installed AutoCad Lt 2021 as a new download. Release notes are March 25, 2020.

PC is:

Running: Windows 10 Home
Version: 10.0.19041 Build 19041
System: x64 based

I can assess the Autocad Lt 2021 web application via the Autodesk app,

When I launch the desktop version of AutoCad Lt 2021 from either the desktop shortcut or Autodesk Launch button the loading window appears, runs through a few things at the bottom, then disappears and nothing happens. No errors. No freezing. It just "loads" goes away and the application doesn't start.
I can then re-click on the shortcut and the same thing happens. Doesn't hang. Its like the program forgot what it just did.

Thought it was a problem with AutoCad Lt 2021. So installed AutoCad Lt 2020. Same problem.

Have added AutoCad to Bitdefender Antivirus allowed programs. Have checked the windows firewall as an allowed application. All fine.

Screen cast attached showing whats happening.

[Anonymous]

Do you have the following updates: licensing service, single sign on ?

What's your graphics card and driver version?

Does your PC meet the requirements for AutoCAD?

See also list of certified hardware

[Anonymous]

Do you have the following updates: licensing service, single sign on ?

1. Both updates are already installed.

What's your graphics card and driver version?

1. GeForce GTX 1060 6GB - Driver Version 451.77

Does your PC meet the requirements for AutoCAD? - Short Anwser is Yes. Long answer is below.

Operating System	64-bit OS that follows Autodesk's Product Support Lifecycle policy.	Yes
Processor	Basic: 2.5–2.9 GHz processor Recommended: 3+ GHz processor Multiple processors: Supported by the application	3.4Ghz
Memory	Basic: 8 GB Recommended: 16 GB	8GB
Display Resolution	Conventional Displays: 1920 x 1080 with True Color High Resolution & 4K Displays: Resolutions up to 3840 x 2160 supported on Windows 10, 64-bit systems (with capable display card)	Yes. 1920x1080
Display Card	Basic: 1 GB GPU with 29 GB/s Bandwidth and DirectX 11 compliant Recommended: 4 GB GPU with 106 GB/s Bandwidth and DirectX 11 compliant	GeForce GTX 1060 6GB
Disk Space	7.0 GB	Yes
Network	Deployment via Deployment Wizard. The license server and all workstations that will run applications dependent on network licensing must run TCP/IP protocol. Either Microsoft® or Novell TCP/IP protocol stacks are acceptable. Primary login on workstations may be Netware or Windows. In addition to operating systems supported for the application, the license server will run on Windows® Server 2012 R2, Windows Server 2016, and Windows Server 2019 editions.
Pointing Device	MS-Mouse compliant	Yes
.NET Framework	.NET Framework version 4.8 or later	Yes

See also list of certified hardware

My Graphics card doesn't show up but those are are mainly workstation or laptop graphics cards.

[Anonymous]

Anything Autodesk-related in the Event Viewer?

Also see this article, particularly the license errors.

[mdavis22569 · Accepted solution]

The newest drivers don't always work ... especially with the GTX 

Try this one:

https://www.nvidia.com/download/driverResults.aspx/126179/en-us

Also try the following:

https://knowledge.autodesk.com/support/autocad/troubleshooting/caas/simplecontent/content/starting-a...

[Anonymous · Accepted solution]

Thanks @mdavis22569 .

I rolled the Geforce GTX drivers back to the 388.13 version and it loaded.