How to Clear Your Cache on a Computer: A Complete Guide for Windows, Mac and Browsers
How to Clear Your Cache on a Computer: A Complete Guide for Windows, Mac and Browsers
By Nerdcore PC Systems | Computer Tips & Troubleshooting
Is your computer running slowly, are websites refusing to load properly, or are you seeing outdated information when browsing the internet? Before assuming your computer needs a repair, clearing your browser cache is a simple troubleshooting step worth trying.
At Nerdcore PC Systems, we help Australian home users and businesses troubleshoot computer problems, improve performance and get their technology working properly. In this guide, we explain what a cache is, how to clear it safely, and what to do if your computer is still running slowly afterwards.
What is a computer cache?
A cache is a collection of temporary files stored by your computer, applications or web browser to help things load faster.
For example, when you visit a website, your browser may save copies of images, website layouts and other files. The next time you visit, it can reuse those files rather than downloading everything again.
Caching is useful, but occasionally stored files become outdated or corrupted. This can contribute to website display problems, loading errors and other browsing issues.
Signs you may need to clear your cache
You might benefit from clearing your browser cache if:
Websites display incorrectly or look outdated.
Pages take longer than usual to load.
Images or website elements fail to appear.
A website stops working after an update.
You experience unexpected browser errors.
You have been asked by technical support to clear temporary website data.
Important: Clearing your browser cache is not a guaranteed way to speed up your entire computer. If Windows is slow, applications keep crashing or your computer freezes regularly, another underlying issue may need attention.
How to clear your browser cache quickly
For most Windows users, the quickest method is to open the browser's clear-data window directly.
Open Google Chrome, Microsoft Edge or Mozilla Firefox.
Press Ctrl + Shift + Delete on your keyboard.
Choose the time range you want to clear.
Select the option labelled Cached images and files or similar.
Leave cookies and browsing history unticked if you only want to clear the cache.
Click the button to clear or delete the selected data.
Reload the website you were having trouble with.
On a Mac, Command + Shift + Delete works in many browsers, although shortcuts and menu labels can vary.
How to clear the cache in Google Chrome
Google Chrome stores website files to help pages load efficiently. If a website is not displaying correctly, clearing its cached files may help.
Open Google Chrome.
Click the three-dot menu in the top-right corner.
Select Delete browsing data or the equivalent option under Settings.
Choose a time range, such as All time, if you want to clear the entire cached history of files.
Tick Cached images and files.
Leave other data categories unticked if you only want to clear the cache.
Click Delete data or Clear data.
Reopen the affected website and check whether the problem has been resolved.
Chrome may take a little longer to load some pages the first time after clearing the cache because it needs to download fresh files.
How to clear the cache in Microsoft Edge
Microsoft Edge uses cached website data to improve browsing performance.
Open Microsoft Edge.
Click the three-dot menu in the top-right corner.
Open Settings.
Select Privacy, search and services.
Find the section for clearing browsing data.
Choose the option to select what to clear.
Select a time range.
Tick Cached images and files.
Leave other categories unticked if you only want to clear cached files.
Click Clear now.
Try visiting the website again to see if it loads correctly.
How to clear the cache in Mozilla Firefox
Firefox lets you remove cached website files through its privacy settings.
Open Firefox.
Click the three-line menu in the top-right corner.
Select Settings.
Open Privacy & Security.
Find the section for cookies, site data or browsing data.
Select the option to clear data.
Choose the cached web content or temporary cached files option.
Leave cookies and other data unticked if you only want to clear the cache.
Confirm by clicking Clear.
The wording may differ slightly depending on your Firefox version.
How to clear the cache in Safari on a Mac
Safari has a slightly different process for clearing cached files.
Open Safari.
Select Safari from the menu bar.
Open Settings.
Select Advanced and enable the web developer features option if it is available in your version.
Open the Develop menu in the menu bar.
Select Empty Caches.
This clears Safari's cached website files without requiring you to clear your entire browsing history.
Tip: Avoid selecting broader history or website-data removal options unless necessary. These may sign you out of websites or remove saved preferences.
How to clear temporary files in Windows 11
If your Windows computer is running low on storage, cleaning up temporary files may help free some disk space.
Click the Windows Start button.
Open Settings.
Select System.
Click Storage.
Review the temporary files and storage recommendations.
Select the temporary file categories you want to remove.
Review your selections carefully before confirming deletion.
You can also use Storage Sense, which helps Windows automatically manage certain temporary files and free up storage.
A word of caution
Not every file listed in a cleanup utility should be deleted without checking. Pay particular attention to your Downloads folder, Recycle Bin and any files you may still need.
Removing temporary files can free storage, but it will not necessarily resolve problems caused by failing hardware, insufficient memory or software faults.
Should you clear the cache on a Mac?
Sometimes clearing an application's cache can help resolve a particular problem. However, manually deleting system or application files without understanding their purpose can cause unnecessary issues.
If a Mac application is behaving strangely, try the application's built-in troubleshooting options first. If the problem persists, consider getting professional assistance before removing files from system folders.
What is the difference between cache, cookies and browsing history?
These terms are often grouped together in browser settings, but they do different things.
Cache: Stores temporary website resources, such as images and layout files, to help pages load efficiently.
Cookies: Store website information, such as session identifiers and preferences. Clearing them can sign you out of websites.
Browsing history: Records the websites you have visited in your browser.
Saved passwords: These are generally managed separately from the cache. However, always review the selected data categories before confirming a cleanup.
If you only want to fix a website display problem, start by clearing cached images and files rather than deleting everything.
Will clearing the cache make my computer faster?
It may help with particular browser problems, but clearing the cache is not a universal computer speed-up solution.
Your computer may still run slowly because of:
Too many applications running at startup.
Insufficient available memory.
A nearly full storage drive.
Background updates or applications using system resources.
Outdated drivers or software.
Browser extensions causing conflicts.
Malware or unwanted software.
An ageing or failing hard drive or SSD.
Overheating or other hardware faults.
If your computer remains slow after clearing the cache, the next step is to identify the actual cause rather than repeatedly deleting temporary files.
How often should you clear your cache?
There is no need to clear your browser cache every day. Most browsers manage cached files automatically.
Consider clearing it when a website repeatedly displays old information, pages fail to load correctly or you encounter a persistent browser problem.
If everything is working normally, leaving the cache alone is usually fine.
Frequently asked questions
Does clearing my cache delete my personal files?
Clearing only your browser's cached images and files should not delete your personal documents, photos or downloads. Be careful not to select other data categories unintentionally.
Will I lose my saved passwords?
Clearing cached files alone generally does not delete saved passwords. Clearing cookies or other browsing data may sign you out of websites, so you may need to log in again.
Why is my browser still slow after clearing the cache?
The cause could be your internet connection, browser extensions, available memory, storage space, software problems or another issue with your computer. Cache clearing only addresses a limited range of potential causes.
Can clearing the cache fix websites that will not load?
It can help when outdated or corrupted cached files contribute to the problem. If the issue continues, try another browser or check whether the website or internet connection is experiencing difficulties.
Is it safe to clear the cache?
Clearing cached browser files is generally a safe troubleshooting step. The main consideration is making sure you select the correct categories and understand the possible effects of clearing cookies or other stored information.
Need help with a slow computer?
If your computer is still freezing, running slowly or experiencing persistent internet and browser problems, the issue may require more than a cache cleanup.
Nerdcore PC Systems provides computer repairs, laptop repairs, onsite technical support, remote assistance and business IT support.
Our team can help troubleshoot Windows and Mac problems, investigate performance issues and identify practical next steps.
Call: 1300 637 326 (1300 NERDCORE)
Website: https://www.1300nerdcore.com.au/
Service centre: G3/3 Willesden Road, Hughesdale, Victoria
Request a quote: Visit our website to arrange support.
Nerdcore PC Systems — Your Local Nerds Since 2001.
