How to Clear the Cookies and Cache on a Windows PC

Chrome

1. Go to Settings and select ClearBrowserData in Chrome.

• You can also get to this page by pressing "Ctrl, Shift and Delete" at the same time on your keyboard, while Chrome is open.
• You can also click the "Kebab Button" ( ⋮ ) in the top-right to open the "Customize and control Google Chrome" pane, then select "Settings" > "Privacy and security" > "Delete browsing data."

2. A prompt appears showing the user what data can be deleted.

3. Stay in the "Basic" tab.

• Set "Time range" to "All time".
• Ensure "Browsing history", "Cookies and other site data", and "Cached images and files" are checked.
• Select "Delete data".

NOTE: Depending on how many files have been stored, it may take a minute to clear.

4. Once Done 

• Close Chrome
• Rre-launch Chrome

See also: Google - Clear cache & cookies

Firefox

1. Launch Firefox.
2. Press "Ctrl, Shift and Delete" on your keyboard at the same time.

• A prompt appears showing the user what data can be deleted.

NOTE: You can get to this page by clicking the "Hamburger Button" ( ☰ ) in the top-right to open the "Application menu" pane, select "Settings", select "Privacy & Security", Scroll down to "Cookies and Site Data", and select "Clear."

3. Set "When" to "Everything."

• Check mark "History", "Cookies and site data", and "Temporary cached files and pages".
• Select "Clear".

NOTE: Depending on how many files have been stored, it may take a minute to clear.

4. Once Done

• Close Firefox.
• Re-launch Firefox.

See also: Mozilla - How to clear the Firefox cache

Microsoft Edge

Edge is similar to Chrome as it is based on Chromium. 

1. Go to Settings and select ClearBrowserData in Edge.

• You can also get to this page by pressing "Ctrl, Shift and Delete" at the same time on your keyboard, while Edge is open.
• You can also click the "Kebab Button" ( ⋮ ) in the top-right to open the "Settings and more" pane, select "Settings", select "Privacy, search, and services", select "Delete browsing data",  and select "Choose what to clear" in the top-right.
• From the "Customize and control Google Chrome" pane select "Settings", "Privacy and security", and "Delete browsing data".

2. A prompt appears showing the user what data can be deleted.

3. Set "Time range" to "All time."
   • Check mark "Browsing history", "Download history", "Cookies and other site data", and "Cached images and files".
   • Select "Clear now."

NOTE: Depending on how many files have been stored, it may take a minute to clear.

4. Once Done

• Close Edge
• Re-launch Edge.

See also: Microsoft - How to manage and clear your cache and cookies