If VirtualBox is misbehaving — broken network adapters, missing drivers, or mysterious E_FAIL errors — sometimes a clean reinstall is the only cure. Here's the definitive step-by-step guide to wiping every trace of VirtualBox from Windows 11 and starting fresh. ⚠️ Before You Start — Protect Your VMs Your Virtual Machines are completely safe during this process. … Continue reading How to Completely Clean and Reinstall VirtualBox on Windows 11 (The Right Way)
How to Rebuild a Virtual Machine from Existing VDI Disks (The Easy Way)
Have you ever found yourself with a folder full of Virtual Disk Images (.vdi files) but no Virtual Machine configuration file (.vbox) to run them? Whether your host operating system crashed, you are migrating environments to a new laptop, or you are restoring a backup from cold storage, spinning up a machine from pre-existing virtual … Continue reading How to Rebuild a Virtual Machine from Existing VDI Disks (The Easy Way)
Demystifying Oracle VirtualBox Networking: Which Mode Should You Choose?
When building virtual labs, setting up development environments, or testing complex multi-VM architectures, understanding network connectivity is half the battle. Oracle VirtualBox 7.2.x continues to offer a robust suite of networking modes designed for every scenario—from complete isolation to seamless cloud integration. Choosing the wrong network type can lead to frustrating connection errors or unintended … Continue reading Demystifying Oracle VirtualBox Networking: Which Mode Should You Choose?
VirtualBox: Not Able to Start my Important Virtual Machine
I have a couple of old (but important) virtual machines, that I run from time to time when I deliver a specific workshop.I didn't run these machines since couple of months. During this time I got my new laptop, which is more powerful than the old one. My Old Laptop specs: My New Laptop specs: … Continue reading VirtualBox: Not Able to Start my Important Virtual Machine
Oracle Linux 7.7 Installation on Oracle VirtualBox
How to upgrade Oracle VirtualBox to the latest version?
VirtualBox: Failed to import appliance , Result Code: E_INVALIDARG (0x80070057)
Background: I uploaded one VirtualBox appliance to Google Drive to share with my friends. Appliance is a little-bit big one (30GB), that is why I divided it into 10 zip files using 7-zip software. My friend downloaded the appliance, started to import it, but he received the following error: Failed to import appliance C:\Users\<username>\Downloads\EM13cR2\EM13cR2.ova.Result Code: … Continue reading VirtualBox: Failed to import appliance , Result Code: E_INVALIDARG (0x80070057)
VBoxClient: Could not find symbol address
Problem Description: While one of my VirtualBox machines was running, a power crash happened and I had to restart my laptop.After restarting the laptop, I started that virtual machine again, it started, but I got the following errors, and I was not able to access the machine from VirtualBox (seems to be hang), but I … Continue reading VBoxClient: Could not find symbol address
Virtual Machine with Oracle Database 12c R2 12.2 and Oracle Restart
https://youtu.be/qsepeUPQ-JU For more information on how to get this VM and other similar machines, please refer to:https://ahmedfattah.com/2020/06/13/oracle-virtual-machines-for-sale/ ThanksAhmed
Oracle Virtual Machines for Sale !
Are you looking for a virtual machine to do some hands-on labs or practice something (i.e. for Educational purposes}? Do you have the time to build these virtual machines yourself? Below are some really nice Virtual Machines, that I invested allot of time to build on Oracle Virtual Box, and that I used them personally … Continue reading Oracle Virtual Machines for Sale !