Adobe Illustrator Error Code 4 -
Adobe Illustrator relies on a preferences file (AIPrefs) to remember your workspace, brushes, and history settings. If this file becomes corrupted, Illustrator may try to write crash data to a locked system location, triggering the error on launch.
Old temp files can conflict with new save operations. adobe illustrator error code 4
: Try selecting "Open as Copy" from the File menu to bypass initial corruption checks. Adobe Illustrator relies on a preferences file (AIPrefs)