By default, the security levels in Internet Explorer are okay for most types of browsing, they should not break most web site but it's possible that it can. There are four zones (Internet, Local intranet, Trusted sites, and Restricted sites), each zone has it own security level that you can assign to it. For example, the Internet zone has a security level of Medium-High, which prompts you for download and blocks unsigned ActiveX controls.
To adjust IE's security levels, follow the instruction below:
- Launch Internet Explorer.
- From the Tools menu select 'Internet Options'
- Click the Security tab.
- Select the zone you want to change.
- Then adjust the security level by moving the slider up (for more restrictive) or down (for less restrictive) .
- Press the OK button
- Click on the 'Trusted sites' zone icon, and then press the Sites button.
- Type the domain name (such as example.com) of the trusted site then press the Add button. (Note: You may need to uncheck the box the 'Require server verification (https:) for all sites in this zone' checkbox).
- Press the OK button.