Helpful Hints Before you begin , close multiple browser windows leaving only one window open. After you clear cache you may want to set the browser to automatically clear cache when you close the browser. After changing your settings, remember to close and then re-open your browser to refresh the changes. Click here for instructions. Clearing the Cache and Cookies from a web browser an important first-step for almost any troubleshooting for internet browsing.
The 'cache' is a tool used by your internet browser to speed up the page loading process. However, sometimes it can cause a problem when websites are updated and developed as files saved in the cache may conflict with what's actually coded into the website. Clearing Cache and Cookies is a way we can be sure that any issues you may come across are actually something wrong with the website, rather than inconsistencies caused by using different browsers. Skip to main content. The University of Iowa Search.
Why Clear Cache and Cookies? Google Chrome. Click the Tools menu three dotted lines in the upper-right corner. Select History. The CPU, or central processing unit — the core component responsible for processing information from the software in your desktop computer , laptop, smartphone, or tablet — has its own cache. It stores data that your device's main memory uses to execute instructions far more quickly than if it had to load every bit of information only when it was requested.
A browser cache stores files needed by your browser to display the web sites it visits. For example, when you visit Amazon, it downloads all the images associated with product pages you visit, the HTML and other script files needed to render the pages, and personalization information, such as your login information, and the contents of your shopping cart.
That's why if you clear your browser cache, retail sites will require you to log back in and rejigger your settings. Apps typically maintain their own cache as well. Like browsers, apps save files and data they deem important so they can quickly reload the information as needed.
Every app is different, though, and so the kind of data it caches will vary, but might include images, video thumbnails, search history, and other user preferences. While modern software depends heavily on the use of caches, they have some disadvantages as well:. Given the downsides of cache, it makes practical sense to clear your cache as part of regular maintenance.
In addition to corrupted files, if a cache gets too large, or if your computer starts to run low on storage space, these issues can also affect your PC's performance. If a cache can be cleared by you, the user, the program that owns the cache generally makes that option available somewhere in its settings menu. In addition to being able to clear the cache on Windows or iOS , here's how to clear the cache on popular web browsers:.
We've also written extensively on how to clear the cache on different devices. Here's how to clear the cache on:. The advantages of clearing the cache include freeing up previous storage space on your computer and eliminating any files that might be causing it to misbehave. Unfortunately, clearing the cache also eliminates the files that are designed to make your computer run more efficiently.
For example, clearing a browser cache typically means you'll have to log into all your favorite websites all over again, and you'll lose any special customizations or personalization you had there, including the contents of shopping carts or baskets.
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