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Browser Not Supported (Error Code 100): 3 Ways to Fix It

Uninstalling recent updates might help you solve the issue

4 min. read

Updated onOctober 4, 2023

updated onOctober 4, 2023

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Key notes

Error Code 100 is a browser not supported error code. It indicates that the website you’re trying to visit is not compatible with your browser. This could be due to an outdated browser version or a problem with your operating system.

Generally speaking, older browsers don’t work well with newer websites because they don’t support newer technologies and features.

You may also encounter athis site can’t be reached error, but we have adequately covered various fixes to help you bypass this issue.

What does error code 100 mean?

What does error code 100 mean?

Error code 100 is an error code that means the browser could not establish a connection to the server. It can be caused by a number of reasons, so the first thing you should do is check your internet connection.

Other reasons include:

In some rare cases, it could also be becausethere’s a problem with the website’s security certificate. If this is the case, don’t hesitate to check our expert article on recommended fixes.

Use a more stable browser if you keep having problems with your current one. We recommend Opera One as a stable and lightweight solution.

Running on a Chromium engine, this browser is compatible with all Chrome extensions and includes familiar tools for tabbed browsing, and advanced tools like an adblocker, VPN and an AI.

Opera One

How do I fix the browser not supported error code 100?

How do I fix the browser not supported error code 100?

1. Update your browser

In order to fix the error code 100, all you need to do is upgrade the browser from the one that is currently installed on your computer so it supports all the websites that require a specific browser version.

By upgrading your current browser, you can ensure that all supported sites will work properly without any errors or crashes in future visits.

2. Clear cache and cookies

One of the most common causes of this error is an outdated cache or cookie file in your browser. You may also be able to fix this problem by clearing your browser’s cache and cookies.

Clearing your browser cache deletes temporary files stored on your computer by your browser that may be causing sites to load slowly or incorrectly.

3. Uninstall recent updates

What are the most common browser not supported errors?

A browser not supported error is an alert that web pages may display to users when their browser is incompatible with a particular website’s requirements. It can manifest in different forms, such as:

You can easily solve most browser errors by updating your browser or clearing cookies. In some cases, you may also not have enough memory for your browser to handle such requests, or a virus has infected your system.

It is why we recommend that youinstall a reliable antivirusto prevent such occurrences. Hopefully, you have been able to resolve the browser not supported error code 100 from one of our solutions above.

Let us know of any other additional solutions not mentioned here that may have worked for you in the comments section below.

More about the topics:Browser errors,browsers

Claire Moraa

Windows Software Expert

Claire has a knack for solving problems and improving the quality of life for those around her. She’s driven by rationality, curiosity, and simplicity, and always eager to learn more about Microsoft’s products. With a background in teaching and reviewing, she breaks down complex topics into easily understandable articles, focusing mostly on Windows 11, errors, and software.

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Claire Moraa

Windows Software Expert

With a background in teaching and reviewing, she breaks down complex topics into easily understandable articles, focusing mostly on Windows 11 errors.