Type to search

How To Fix Avast Antivirus Error 305: Easy Troubleshooting Guide

Avast is a popular antivirus program among the users for its unbeatable features. Avast enjoys a considerable consumer base for its advanced technology. But being an antivirus software it comes with some technical glitches. Avast error 305 is one such glitch.

Relevant Causes For Avast Antivirus Error

If Avast antivirus is installed in your system, then while using your device an error message will pop-up on your screen.

“Error 305: Avast Antivirus has encountered a problem and needs to close. We are sorry for the inconvenience.”

At times, it even crashes the active window and also at times you may find that the Avast Firewall Won’t Turn On Windows 10. For which you will need other measures. Also, Windows runs sluggishly and even can freeze at times. The factors responsible for this Avast error 305 are following-

Corrupt Download: If you have downloaded the corrupt software in your system, then it restricts you from installing the software triggering the Avast installation error 305.

Corrupt Windows Registry: If any malicious software is present in the system, then it can corrupt Windows system files. Due to which it will support the Avast Antivirus software which you want to download.

Installed Third-party Software: Sometimes we download software in our system for various purposes. Due to which files conflict occurred between the system files and the Avast antivirus software and due to which Avast Antivirus error 305 occurs.  

Resolve Avast Antivirus Error 305 With Easy Troubleshooting Methods

Here are some useful methods in this guide. If you apply these methods in a proper way, then surely you may able to fix the issue on your own. Every method has been approved by experts.

Solution 1: Perform Full System Scan For Malicious Programs

If you are using Windows 8 or Windows 10, then launch your Windows Defender. It can detect the malicious files and programs and remove them.

Solution 2: Update PC Drivers

Firstly, access the Start menu and then type ‘Device Manager’ in the search box. A list will pop-out and then choose the Device Manager from the list. After that, expand a category to find the name of the device and then right-click on it and then select ‘Update Driver’. Then, choose the option ‘Search Automatically For Updated Driver Software’ and if found then click on the Install option.

Solution 3: Clean System Junk Files With Disk Cleanup

You can start the method by clicking on the Start button and then type in the command in the search box.

Press CTRL and Shift buttons simultaneously and then press Enter. Now a dialog box will be displayed asking for permission, click on Yes. After that, a black box will appear to you with a blinking cursor. Type in “cleanmgr” and then press Enter. The Disk cleanup will begin calculating the occupied space which you may get back. The Disk Cleanup dialog box will appear with a series of checkboxes you can select from. Mostly temporary files category occupies maximum disk space. Now check the boxes of the categories which you want to clean and then click on OK.

Solution 4: Uninstall And Reinstall the Avast Antivirus Program

Open the Start menu and click on the Programs and Features. Now choose the Control Panel which you will get on the right side of the menu. After that, click on Programs and then click on Programs and Features. Now locate Avast Error 305-associated program which you will get under the Name column. After that, click on the Avast Antivirus -associated entry. Now click on Uninstall button which you will get on the top menu ribbon. Now just follow the on-screen direction which will display on your screen in order to complete the uninstallation of Avast Error 305-associated program.

After successfully uninstalling the antivirus program, reinstall it following the instructions displayed on the screen.

Solution 5: Check For Windows Updates

  • At first, click on the Start button.
  • After that, type in ‘update ‘ in the search box and then press Enter.
  • Now the Windows Update dialog box will appear in front of to you.
  • If updates are available, then click on the install Update option which will download the updates and automatically installed.             

After applying the above methods, if the Avast! Antivirus error still persists, then seek help from a skilled professional. If you have any queries regarding the given solutions, then comment in the comment box.

Antivirus software is something that you rely on to ensure the security of your computer. So in case anything goes wrong, you’ll have to fix it fast.
For that, there are all the instructions that you might need, right here on this website Errorcode0x.