This has been reported as being malware which invades your computer with pop-ups, random behavior regarding page opening and many other unwanted things. I recommend that you urgently install Kaspersky TDSSKiller as it will scan and remove hidden processes and DLL files that prevent you from uninstalling this malware. Then you can perform a scan with your favorite anti-virus in order to remove it completely.
How do I uninstall OtShot?
This has been reported as being malware which invades your computer with pop-ups, random behavior regarding page opening and many other unwanted things. I recommend that you urgently install Kaspersky TDSSKiller as it will scan and remove hidden processes and DLL files that prevent you from uninstalling this malware. Then you can perform a scan with your favorite anti-virus in order to remove it completely.