There are several legitimate security programs which can add numerous entries to the HOSTS file. Spybot S&D
offers four levels of protection
to include...Immunization, Resident SDHelper, TeaTimer, Hosts file protection
If you use Spybot's immunization feature
, the "Global (Hosts)" profile adds entries to the HOSTS file. Any inactive domains and those reported as false positives will be removed when doing immunization. However, the large size of the Hosts file created by Spybot immunisation has sometimes been reported to cause problems such as a significant delay when opening Internet Explorer.
If you perform an "Undo" via the Immunize button on the Spybot main screen, the entries Spybot added should be removed. From the Immunize panel, deselect the Hosts file protection as follows:
- Click the Undo option at top of screen to remove all immunisations.
- Uncheck Global Hosts...the last item in the list.
- Click Immunize option at top of screen to re-apply immunization without the Hosts entries.
If you encounter issues with Spybot's HOST file feature (including removal and restoration), they should be reported here