Download Mplab X Ide V535 Portable [portable]

Do not download pre-packaged "portable" versions from unknown sources. Instead, install the official v5.35 normally, or use a lightweight virtualization solution (e.g., Portable VirtualBox with a Linux guest) to achieve true isolation and portability without modification of the IDE.

Insert your USB 3.0/3.1 drive (at least 8 GB, 16 GB recommended). Install as follows: download mplab x ide v535 portable

Released in early 2020, version 5.35 is notable for being one of the final versions to include the MPASM assembler install the official v5.35 normally