in How To's, Synology

If you’re looking into removing the Universal Search app from your DSM, because it’s bogging up your NAS, you can do it using root permissions via terminal.

Just log in via SSH and issue:

sudo -i

synopkg uninstall SynoFinder


In case you just want to stop it, then you’ll need to issue

synoservice --disable pkgctl-SynoFinder

You can add this script to Task Scheduler so that it is issued on every restart.