Need help removing an adware program: "Selection Tools"

I foolishly download some free programs that ended up installing some adware onto my PC. I uninstalled most of them, however each time I try to uninstall 'Selection Tools' from the control panel Norton pops up with the message; "Auto-protect blocked security risk Suspicious.Cloud.9. Your Computer is secure." and if I click View Details it displays that the file it blocked was "selection tools uninstall.exe".

Is there a reason Norton blocks the program when I try and uninstall it?

Can anyone help me get this program removed from my PC safely?

Any help will be appreciated.

Thanks!