If the error occurs with a specific file rather than the general directory:
AutoCAD 2013, like many Windows applications, requires read/write access to: Make Sure You Can Write To Current Directory Autocad 2013
If this works, make it permanent: right-click the shortcut > > Compatibility tab > check Run this program as an administrator . 2. Grant Full Control to Autodesk Folders If the error occurs with a specific file
If the error persists when saving files, you may need to manually grant your user account "Full Control" over the Autodesk folders. Autocad 2013 installation | PPTX - Slideshare like many Windows applications
Popular antivirus suites like McAfee, Norton, and even Windows Defender can interfere with AutoCAD 2013’s write operations.