If you can tell me the you see or which app is triggering it, I can give you a more specific solution.
Most modern apps (like Chrome, Discord, or Steam) throw kernel32.dll errors because they require updates that weren't in the original Windows 7 release.
You can verify yours by right-clicking the file → Properties → Details tab.
He sighs, closes the browser tab, and goes to the official Microsoft Update Catalog. He realizes his Windows 7 is missing the security rollup. He downloads the official 300MB update package directly from Microsoft.