This error is infamous in the PC version of Grand Theft Auto IV. It occurs because the game was poorly ported from consoles and struggles to create save files on modern versions of Windows (Windows 10 and 11), specifically due to permission issues with the "Games for Windows Live" (GFWL) system and the Documents folder structure.
The save folder might have wrong NTFS permissions.
This guide provides solutions for the "Save failed. Please check your storage device and try again" error in gta 4 save failed please check your storage link
Go to the Security tab, click Edit, and select your Windows user. Check the box for Full control and click Apply. 4. Administrative & Compatibility Modes
If you’re on console (PS3/Xbox 360):
The "Save failed. Please check your storage device" error in Grand Theft Auto IV
3. Restart the Game
Before diving into fixes, it is essential to translate Rockstar’s cryptic error message. The term “storage link” is an older technical phrase referring to the connection between the game and your storage device (HDD, SSD, or external USB drive).