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Fatal error when launching AutoCAD

When starting up AutoCAD, the program crashes with a fatal error similar to the following (AutoCAD Error Aborting): 

User-added image 

Additional Issue Details:
  • In event viewer, there is an error related to .Net Framework
  • When checking .Net Framework, it returns 'No Version'. - .Net Framework version checking command;
    • wmic /namespace:\\root\cimv2 path win32_product where "name like '%%.NET%%'" get version
  • When installing .Net Framework, it's not being installed with 'higher version' already installed error

Causes:

Fatal errors have a variety of causes. They often indicate a corrupt drawing, program corruption, browser was not properly configured, or a problem with the system configuration.

Solution:

There are several ways to troubleshoot the problem:
  • Make sure your Windows system is up-to-date with the latest updates.
  • Update the product.
    Updates for latest releases are acquired via the Autodesk Desktop App. Right-click its icon down on the status bar next to the time and pick "Check now." You may also download updates through your Autodesk Account (see Where to get Product Updates, Add-ons, and Enhancements). For older products, see Autodesk Downloads.

  • Try opening another drawing.
    If you can open another drawing, the original drawing may be corrupt and require repair.
    See: How to repair corrupt AutoCAD files
     
  • Try running the executable file (i.e. acad.exe) as administrator.
    Right click on the shortcut, select open file location - then right click on the file and select Run As Administrator
  1. Open Internet Options (Control Panel > Network and Internet > Network and Sharing Center > click on Internet Options link).
  2. Click the "Connections" Tab and then click "LAN Settings."
  3. Deselect all settings:
Lan Settings

If all the above solutions fail, you may need to ask the Community forum or contact Autodesk Customer Support.

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