The Application Was Unable to Start Correctly (Opening AutoCAD or F/X CAD)
Issue
You received one of the following error messages:
Error: The application was unable to start correctly (0xc0000142). Click OK to close the application.
or
Error: The application was unable to start correctly (0xc0000005). Click OK to close the application.
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Cause
Possible causes of this error include software installed on your computer that conflicts with your CAD installation.
Solution
Open the following reg key: HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft\Windows NT > CurrentVersion > Windows > LoadAppInit_DLLs and change the Value data to 0.
To access the folder path shown above, open the Run dialog box by pressing the Windows and R keys (Windows) or the Command and R keys (Mac using Parallels Desktop).
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In the Run dialog box, type the word regedit into the Open field. Click OK.
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A dialog box resembling this one may open. Click Yes to open the Registry Editor.
The Registry Editor will open. Expand the HKEY_LOCAL_MACHINE folder by clicking the arrow to the left of the folder name.
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From the folder HKEY_LOCAL_MACHINE, continue expanding folders to navigate to the folder path Software > Microsoft > Windows NT > Current Version > Windows > LoadAppInit_DLLs.
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Double-click the reg key LoadAppInit_DLLs, pictured above.
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Type 0 in the Value data field. Then click OK.
Reboot your computer to enact the change.
For more information on this error, visit the official Autodesk solution.