Does anybody know how to remove software from registry ?
You can uninstall software but it still leaves some registry point in computer and even if you reinstall the software it is like continuing the same software.

id just google yoursoftware name + registry cleanup. Is it one of those pesky malware that pops up continuously?

Try this one https://www.revouninstaller.com/revo_uninstaller_free_download.html

Should be somewhere here ..but ve to verify

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall