Because files like this can regenerate if not fully removed, it is best practice to run a dedicated scanner.
Legitimate software usually installs in Program Files. Malware and PUPs often hide in user-specific temporary folders. ifast22.exe
Do not rely on Windows Defender alone. Use a layered approach: Because files like this can regenerate if not
Do not simply delete the file—it may regenerate. Follow this disciplined removal process. Verify digital signature
If the file is signed by a reputable company (like a known hardware manufacturer), it is likely a utility driver. If there is no signature, or it is signed by an entity you don't recognize or trust, proceed with caution.