How to Fix Site is Not Secure in Internet Explorer

Authored by: Support.com Tech Pro Team

1. Introduction

You may have encountered the error "This site is not secure" while browsing the web using Internet Explorer. The error is usually caused by the usage of an improper certificate or no certificate at all, or known malicious code on the site.

The easiest way to resolve this error for regular web browsing is just to double check and change your date and time if needed. We'll also teach you how to clear your cache and what the security settings in Internet Explorer mean.

Tools You'll Need:

• A paperclip
• iPhone charging cable
• Access to a computer with iTunes installed
• Any other non-consumable tools needed
• Comment out tools section if no tools are necessary

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Supplies You'll Need:

• Zip ties
• Any other consumable supplies
• Comment out supplies section if no supplies are necessary

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Before You Begin:

• You must have access to a computer with iTunes installed.
• You must have that thing for the other thing so you can do the thing.

You must have this thing before you whatever.

• Title of GP User Should Do First
• Title of GP User Should Do First
• Each individual prereq should have its own box like this. Not all will contain multiple links.
• Comment out prerequisites section if no prereqs are necessary

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Windows

Windows runs on computers produced by multiple companies, such as Lenovo, Asus, Dell, Toshiba, Hewlett Packard, Acer, and Sony.

macOS

Apple is the only company that makes macOS computers.

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2. Verify the Date and Time in Windows

Security certificates are used by our web browsers and computers to make sure a particular site is safe. Think of it as a form of ID. A website having a valid security certificate lets your browser know that the website claiming to be your bank is actually your bank, and so on. Just like our own government issued IDs have expiration dates, so do security certificates. If your computer has the wrong date and time set, this can cause certificates to appear invalid & your web browser will begin to issue security warnings.

If you notice that the Date and Time is continually incorrect even after manual adjustment, your machine may need to be serviced to replace its CMOS battery.

Verify the Date and Time in Windows

1. Look at the date and time shown in the system tray. This is usually in the bottom right corner of the screen.
   

1. If the date or time are wrong, it can cause issues. To fix:
   
2. For computers running Windows 10
3. Right-click on the date and time.
   

1. Select Adjust date/time.
   

1. For most, letting Windows manage the date and time, as well as automatically setting it is the best choice.
2. Make sure Set time automatically and Adjust for daylight saving time automatically are both turned On.
   

1. Make sure your time zone is selected for Time zone.
   

1. If you want, you can manually set the Date and time.
2. Make sure Set time automatically is set to Off, then select Change for Change date and time.
   

1. Set the Date and Time correctly, then select Change.
   

1. For all other versions of Windows
2. Right-click on the date and time.
   

1. Select Adjust date/time.
   

1. Make sure the proper Time zone is selected.
   

1. Select Change date and time.
   

1. Correct the Date and Time, then select OK.
   

1. You may wish to have Windows set the date and time for you in the future.
   
2. Select the Internet Time tab at the top, then select Change settings.
   

1. Make sure Synchronize with an Internet time server is checked, then select OK.
   

3. Clear Internet Cache and History

1. Open Internet Explorer.
   

1. Select the Gear icon in the top right corner, then select Internet options.
   

1. Under Browsing history, select Delete.
   

1. Go through the list of options here, to ensure the proper items are cleared.
   Once you have chosen your options, select Delete.
   

1. 
   SettingCheckboxPreserve Favorites website dataUncheckedInternet Explorer segments out pages you have marked as favorites. We need to be sure to clear all data, not just some of it.Temporary Internet files and website filesCheckedThis clears your cache, making your browser get a new copy of the webpage, images, etc. It's important to clear this to get a fresh copy the next time you visit, as the copy your browser has may simply be corrupt.Cookies and website dataCheckedCookies are how websites 'know' you when you visit them multiple times. This file can become corrupt, and simply downloading a new one can fix many problems.
2. You will have to log back into any pages you use, such as mail or social media.
3. HistoryCheckedWhile you browse Your browser will keep track of every page you visit, to try to make it easier to return. This can become corrupt due to modern active web pages.Download HistoryPersonal ChoiceThese are a list of files you've downloaded recently. It is entirely safe to delete, or keep this list, as it won't affect pages. Checking this option does not delete the files you've downloaded, just the list the browser keeps.Form DataUncheckedInformation from entering forms online, such as your name, address, or other filled in information. This does not affect how a page loads, and can slow you down on your most commonly used pages.PasswordsUncheckedYour browser will save your passwords while you browse, making it easier to log into your most common websites later. This does not affect how a page loads, and can slow you down on your most commonly used pages.Tracking Protection, ActiveX filtering and Do Not TrackPersonal ChoiceA number of pages will track your use of those pages, and if you've opted out of such tracking. This setting tends not to be well respected from page to page, and some pages simply do not give you the option. While it can affect how a page is displayed, it will only do so in the advertising or other 'personalized content' on that page; not the page itself. It is okay to check or uncheck this option. 
4. When complete, a message will open at the bottom of your browser letting you know the history has been deleted.
   

1. It can take quite a while to delete the cache and history, please be patient.

4. Security-Related Settings

There are multiple settings in Internet Explorer that protect you from malicious activity. While these settings should already be in the state we're advising you they should be in, it's always prudent to make sure these settings are correct, on the off-chance they were previously changed in the past.

1. Open Internet Explorer.
   

1. Select the Gear icon in the top-right corner, then select Internet options.
   

1. Select the Security tab at the top. Then, make sure Internet is selected for zone, and choose the Default level of Medium-high.
   

1. Select the Content tab at the top. Then, select Clear SSL state.
   

1. A box will open letting you know the SSL cache was cleared. Select OK.
   

1. Select the Advanced tab at the top. Scroll to the bottom of the long list of settings. Make sure Use TLS 1.0, Use TLS 1.1, and Use TLS 1.2 are checked. Then, select OK.
   

5. Try the Webpage Again

Once cleaned up, try the website again. If you're still having issues it is most likely caused by the site itself. To resolve this, you'll need to get in contact with the webmaster and let them know. If that's not possible you'll just have to wait.