Author: Dinesh
Dinesh is the founder of Sysprobs and written more than 400 articles. Enthusiast in Microsoft and cloud technologies with more than 15 years of IT experience.
For some reason, if the Oracle VirtualBox is giving the below error while powering on a virtual machine, this simple trick will be useful. You may get an error saying “The VM session was closed before any attempt to power it on”, and closes by itself while switching on a particular VM. Here is the solution that worked for me to overcome this issue. I tried the following methods but did not work. 1) Tried several snapshots to restore back the VM to an earlier state. But it gave me the same error. 2) Restarted the host computer. 3) Stopped…
After several days of attempts and findings, finally, I managed to install Mac OS X Snow Leopard on VirtualBox with my Windows OS PC. We are going to use the original OS medium for this installation purpose. That will give the freedom to have the vanilla kernel and possible software updates from the official Apple website. This method is completely for testing and learning purposes. Please buy the original Mac OS and Apple hardware. From version 3.2, the Oracle VirtualBox officially supports Mac OS X as the guest virtual machine on Apple hardware. So, technically you can virtualize macOS on Apple devices only.…
Previous Version (Shadow Copy) is one of the excellent Windows OS features to restore deleted or corrupted files/folders on Windows 10/8.1/7 without any additional tools. Though it is a built-in tool, some times you may not find it for a folder or file. This article explains the reasons why previous version (Shadow copy) not working in Windows 10 and earlier versions. If a file or folder has the previous version, it can be seen in the property tab as shown below. The Reasons why Previous version (Shadow Copy) Not Working Let us see the reasons and requirements related to this…
This article shows how to install Windows Server 2008 R2 on VirtualBox. Windows 2008 R2 server is available in 64-bit version only, so your computer processor and motherboard should support 64-Bit architecture and VT (Virtualization Technology) to carry out this installation. Even if you are using the 32-bit version of Operating Systems such as Windows 7, Vista and XP on the host computer, still it’s possible to use 64 Bit operating systems as a guest on VirtualBox. To make sure your computer processor and motherboard support this feature read this post where you will find relevant tools for AMD and…
Having a setup like a data centre including VMware vSpehre (ESXi), NAS (Network Access Storage), iSCSI disks and several server VMs on a single (or couple of) PC is a wonderful way to learn and test. It allows replicating the production environment for testing purposes on low-cost hardware. In this article, I show you how to connect FreeNAS iSCSI disks to VMware vSphere/ESXi server. Though the server version is pretty old, most of the main steps remain the same for the latest versions. In this test lab setup, I used VMware vSphere, FreeNAS and Windows 2008 R2 servers to install…
When you try to connect a shared printer in Windows OS (mostly the older versions), you may receive an error message, “The printer driver is not compatible with a policy enabled on your computer that blocks NT 4.0 drivers”. In this guide, we will show you how to fix this certain issue and install the shared printer. This problem mostly occurs when you try to connect the printer with old print drivers from a Windows computer. Most of the older Windows versions like Vista and 2003 Server do not support ‘kernel-mode printer drivers’ for installation. These Windows Operating Systems (Vista)…
The sidebar feature was removed on Windows 7 OS by default. If you loved the cool and fancy sidebar on Windows Vista, you will notice that sidebar is missing in Windows 7. Microsoft realized the sidebar problems with the previous OS and they changed it to Windows 7. The sidebar and its gadgets consume lots of resources on the computer and impact the performance negatively. Microsoft came up with a different feature called ‘Gadgets’ in Windows 7. It allows users to add and remove only important gadgets to their desktop to maintain the better performance and appearance of the desktop.…
This article explains step by step method to install the older version of Mac OS X 10.5.5 in VMware on a Windows PC. If you are interested in learning the older version of Mac OS X Leopard to do some testing, then you can continue reading this article. This guide is only for testing purposes. Whoever doesn’t have the chance to buy Apple hardware with Mac OS can use this method for only learning purposes. Note: This article originally published in August 2009 Installation is not that easy. Installation is not as easy as inserting the CD and clicking ‘Next’…