There are two Inspiron 1525s -- one from 2008 and a newer one called the Inspiron 15 3525.  Which system do you have? If it's the Inspiron 1525 from 2008, it does not support UEFI boot.  
I own a Dell Inspiron 1525 laptop. I have recently installed Ubuntu 22.04 OS on it. The operating system is aught up in a reboot loop. In order to rectify this I need to enable boot from EFI files in it. But,I cam notable to locate advanced boot potions for doing the same. the Bios menu only displays the boot sequence and not advanced boot options. Kindly help?
Advanced boot options in dell Inspiron 1525