Here is a comprehensive guide to resolving this issue and getting back to your drafting. 1. Run AutoCAD as Administrator

Move the slider down to (Note: This reduces system security, so perform this only as a last resort or for testing). Summary Checklist: Is AutoCAD running with Admin privileges? Does the folder have "Full Control" permissions? Is the .dwg file marked as Read-only? Is there enough disk space on the drive?

In AutoCAD, type OPTIONS , go to the tab, and expand Temporary Drawing File Location to ensure it points to a valid, writable path. 6. Disable User Account Control (UAC)

Right-click the AutoCAD 2013 shortcut icon on your desktop and select Run as Administrator .

Change this path to a standard, accessible folder like C:\Users\YourName\Documents . 4. Address Read-Only Drawing Files

Sometimes the "current directory" AutoCAD refers to isn't where your drawing is, but rather the default working directory the program looks at when it first boots up. Right-click your AutoCAD icon > . In the Shortcut tab, look at the Start in: field.

Delete as many files as possible in this folder (skip any currently in use).