Avoid unofficial portable Yandex .exe files unless you can fully verify the build (signature, hash, scans) and test in an isolated environment. Prefer official installers or reputable portable projects and use sandboxing and verification steps if you must use a third-party portable executable.

After extraction, about 200–250 MB. Compressed portable packages (e.g., in .7z or .paf.exe format) are typically 80–100 MB.

A Portable Executable (PE) file is a type of executable file that can be run on Windows operating systems without requiring installation. Portable executables are self-contained and can be run from any location, such as a USB drive or a folder on the desktop.