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Fix HTTP Error 304 Not modified

Error 304 is actually not an error; it just denotes a redirection. If you’re getting 304 not modified error then there must be some problem with your browser’s cache or chances are your system is infected with malware, in any case, you won’t be able to visit the web page you’re trying to. This error can be a little frustrating and annoying but don’t worry; troubleshooter is here to fix this problem and follow the below-mentioned steps.

Fix HTTP Error 304 Not modified

Make sure to create a restore point just in case something goes wrong.

Method 1: Clear Browsers Cache

1. Open Google Chrome and press Ctrl + Shift + Del to open History.

2. Click on the three-dot icon (Menu) and select More Tools, then click on Clear browsing data. 

Click on More Tools and Select Clear Browsing Data from sub-menu

3. Check/tick the box next to Browsing History, Cookies, and other site data and Cached images and files.

Check/tick the box next to Browsing History, Cookies, and other site data and Cache images and files

4. Click on the drop-down menu next to Time Range and select All time.

Click on the drop-down menu next to Time Range and select All time | Fix HTTP Error 304 Not modified

5. Finally, click on the Clear Data button.

Finally, click on the Clear Data button | Fix HTTP Error 304 Not modified

6. Close your browser and restart your PC.

Method 2: Run CCleaner and Malwarebytes

1. Download and install CCleaner & Malwarebytes.

2. Run Malwarebytes and let it scan your system for harmful files. If malware is found, it will automatically remove them.

Click on Scan Now once you run the Malwarebytes Anti-Malware

3. Now run CCleaner and select Custom Clean.

4. Under Custom Clean, select the Windows tab then make sure to checkmark defaults and click Analyze.

Select Custom Clean then checkmark default in Windows tab

5. Once Analyze is complete, make sure you’re certain to remove the files to be deleted.

Click on Run Cleaner to deleted files / Fix HTTP Error 304 Not modified

6. Finally, click on the Run Cleaner button and let CCleaner run its course.

7. To further clean your system, select the Registry tab, and ensure the following are checked:

Select Registry tab then click on Scan for Issues

8. Click on the Scan for Issues button and allow CCleaner to scan, then click on the Fix Selected Issues button.

Once scan for issues is completed click on Fix selected Issues / Fix HTTP Error 304 Not modified

9. When CCleaner asks “Do you want backup changes to the registry? select Yes.

10. Once your backup has completed, click on the Fix All Selected Issues button.

11. Restart your PC to save changes.

Method 3: Using Google DNS

The point here is, you need to set the DNS to automatically detect IP address or set a custom address given by your ISP. Fix HTTP Error 304 Not modified arises when neither of the settings has been set. In this method, you need to set the DNS address of your computer to the Google DNS server. Follow the given steps to do so:

1. Right-click the Network icon available on the right side of your taskbar panel. Now click on the Open Network & Sharing Center option.

Click Open Network and Sharing Center / Fix HTTP Error 304 Not modified

2. When the Network and Sharing Center window opens, click on the currently connected network here.

Visit the View your active networks section. Click on the currently connected network here

3. When you click on the connected network, the WiFi status window will pop up. Click on the Properties button.

Click on Properties

4. When the property window pops up, search for Internet Protocol Version 4 (TCP/IPv4) in the Networking section. Double click on it.

Search for Internet Protocol Version 4 (TCP/IPv4) in the Networking section

5. Now the new window will show if your DNS is set to automatic or manual input. Here you have to click on the Use the following DNS server addresses option. And fill the given DNS address on the input section:

8.8.8.8
8.8.4.4

To use Google Public DNS, enter the value 8.8.8.8 and 8.8.4.4 under the Preferred DNS server and Alternate DNS server

6. Check the Validate settings upon exit box and click OK.

Now close all windows and launch Chrome to check if you’re able to Fix HTTP Error 304 Not modified

6. Close everything and again check if the error is resolved or not.

Method 4: Reset TCP/IP and Flush DNS

1. Right-click on Windows Button and select “Command Prompt(Admin).

command prompt admin / Fix HTTP Error 304 Not modified

2. Now type the following command and press Enter after each one:

ipconfig /release
ipconfig /flushdns
ipconfig /renew

Flush DNS

3. Again, open Admin Command Prompt and type the following and hit enter after each one:

ipconfig /flushdns
nbtstat –r
netsh int ip reset
netsh winsock reset

netsh int ip reset

4. Reboot to apply changes. Flushing DNS seems to Fix HTTP Error 304 Not modified.

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That’s it you have successfully FFix HTTP Error 304 Not modified but if you still have any queries regarding this post feel free to ask them in the comment’s section.

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Aditya Farrad

Aditya is a self-motivated information technology professional and has been a technology writer for the last 7 years. He covers Internet services, mobile, Windows, software, and How-to guides.

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