You are not alone if you are getting the AVG Ultimate installation failure with Error Code 0xE001F90F. This error can be very annoying, but you will fix it quite quickly with a systematic approach. In this guide, we are going to help you troubleshoot and resolve the error with a step-by-step guideline for a successful install.
Step 1: Know the Error Code
Which brings us to the first thing worth knowing before we start going through the fixes: what does Error Code 0xE001F90F even mean?
Error Summary—This type of code usually suggests that installation has failed because of conflicting software, corruption of the installation files, inadequate resources on the system, etc.
Severity: Critical impact, causing AVG Ultimate not to install at all, and your system remains an unprotected zone.
Step 2: Prepare Your System
a. Backup Important Data
- Why: Before making any system changes, always back up your important files to avoid data loss.
- How: Use your preferred backup solution or cloud storage service.
b. Ensure System Requirements Are Met
- Check: Verify that your computer meets the minimum system requirements for AVG Ultimate.
- Update: Ensure that your operating system is up-to-date with the latest patches and updates.
Step 3: Uninstall Previous AVG Installations
Conflicts from old or partial installations may be causing the error.
a. Remove Existing AVG Components
- Windows:
- Open the Control Panel and go to Programs and Features.
- Locate any AVG software, select it, and click Uninstall.
- Follow the on-screen prompts to complete the uninstallation.
- Mac:
- Open the Applications folder.
- Drag any AVG-related applications to the Trash and empty it.
b. Use AVG Clear Tool (Optional)
- Download & Run: AVG provides a dedicated removal tool called the AVG Clear Tool that can help remove residual files.
- Follow Instructions: Follow the prompts in the tool to ensure a clean slate before reinstalling.
Step 4: Clean Up Your System
a. Clear Temporary Files
- Windows:
- Press,
Win + Rtype,%temp%and press Enter. - Delete all files in the temporary folder.
- Press,
- Mac:
- Use Finder to locate the
~/Library/Cachesfolder. - Delete unnecessary cache files.
- Use Finder to locate the
b. Disable Conflicting Software
- Antivirus/Firewall: Temporarily disable any other antivirus or firewall programs that might conflict with AVG Ultimate.
- Other Utilities: Close unnecessary background applications that could be interfering with the installation.
Step 5: Download a Fresh Copy of AVG Ultimate
a. Get the Latest Installer
- Official Website:
- Visit the official AVG website.
- Download the latest version of AVG Ultimate to ensure you’re using an updated and error-free installer.
b. Verify the Download
- Check Integrity: If available, verify the file checksum to ensure the download isn’t corrupted.
Step 6: Run the Installer as an Administrator
a. For Windows Users
- Right-Click:
- Right-click on the downloaded installer file.
- Select Run as Administrator to ensure the installer has the necessary permissions.
b. For Mac Users
- Administrator Account:
- Make sure you’re logged into an account with administrator privileges.
- Double-click the installer to begin the process.
Step 7: Follow the On-Screen Installation Instructions
a. Custom vs. Typical Installation
- Select Installation Type:
- Choose Typical for a standard installation or Custom if you need to modify specific settings.
b. Monitor the Process
- Watch for Prompts:
- Carefully read and follow all on-screen instructions.
- If the installation fails again, take note of any additional error messages that appear.
Step 8: Post-Installation Steps
a. Update AVG Ultimate
- Immediate Update: Once installed, update the software to ensure you have the latest virus definitions and patches.
b. Restart Your Computer
- Final Check: A system restart can help finalize the installation and clear any lingering issues.
Conclusion
Finding your AVG Ultimate Error Code 0xE001F90F while installing it is vexing, but using these outlined stepwise troubleshooting methods, you can fix the error and protect your system from any threat. As you will see, starting from understanding the error and cleaning up your system to running the installer as an administrator and updating the software, each step is meant to remove any potential roadblock.
If the above solutions don’t help you, then please contact AVG Support for more technical assistance.