So I was browsing my registry and came across "Chromium" in HKEY_CURRENT_USER, It only had one key with no value in it, I deleted it, after a cleaned up some junk files, rebooted my pc and there it was again, I made hidden files visible searched for chromium but nothing, I had google chrome installed before but deleted that, tho I can't delete it from the registry (chrome) my previous, now uninstalled browser was Avast secure browser, its icon became blank a few days ago could the browser had gotten a virus somehow? why does chromium keep returning in registry?