Almost VMware Workstation and VirtualBox are the best Virtualization for testing and installing different kinds of operating systems on it includes macOS Mojave or macOS Catalina. Apple has recently announced there latest macOS Catalina. This is the 16th edition of Apple’s macOS which is the biggest update from the company. This update of macOS brought handy features on it, ever it can be of the best update till the date. Firstly, Apple announced there update to the “WDDC” in 2019 after that, released the developer beta version. When they got the positive feedback from users then they released the full version.
Also, we can say that Apple has the best performance overall has the biggest changes to its features. You can complete all experience with its new bunch of features than the older OS. If you are feeling upset about not having a Mac computer, but having the interest to test overall the Advanced features. Then don’t feel any worry, you can install macOS Catalina on VMware Workstation on Windows PC. Or install macOS Catalina on VirtualBox on Windows PC. It is quite easy to install macOS Catalina on Windows PC to feel like an actual Mac.
However, Perhaps VMware Workstation or VirtualBox is the most popular tool for running a macOS virtual machine. After installing macOS Catalina on VirtualBox on Windows you are supposed to not use the CPU support or graphic card. It can cause to face issues of running slow running of macOS Catalina on VirtualBox. Absolutely you can reject these issues by installing a small tool on VirtualBox on macOS Catalina, which called Guest Tool. And with the new major release of VirtualBox 6, it supports the Guest Tool with the feature of VMSVGA. After changing the VMSVGA on the setting of macOS Catalina. Automatically after installation of the Guest Tool, the macOS Catalina will detect the tool and increase the performance.
If you are unaware of what is Guest Tool of VirtualBox, the Guest tool is a helper tool utilities that can be a big supporter for macOS on VirtualBox to boost up the performance. It can increase the various features inside macOS Catalina, CPU support, GPU support, Speed performance, Mouse speed performance, graphic improvements, it also increases the quality of screen resolution. It is time to fix that issues on VirtualBox using the Guest tool, and use a smooth performance. Here is the method to do that, follow each of the steps.
- How to Install macOS Catalina on VirtualBox on Windows PC [New Method]
- Install macOS Catalina on VMware on Windows PC [New Method]
Install Guest Tool on macOS 10.15 Catalina on VirtualBox
Most you might not be familiar with the Guest tool, but you may familiar with installing VMware tool on macOS Catalina. The process on how to install it on VMware and VirtualBox are the same. To do this follow each of the steps instructions.
Step 1. Open the VirtualBox then select the macOS Catalina virtual machine and click on Settings.

Click Settings
Step 2. Navigate to Display tab on the left-handed, if the Video Memory size is less then 128MB increase it. And head over the Graphics Controller, then change the VBoxSVA to VMSVGA and click OK.

Change the VBoxSVA to VMSVGA
Install Guest Tool
Once you changed the Graphic controller option to VMSVGA. Then it is time to switch on the virtual machine before that downloads the Guest Tool from the below link.

Power on the virtual machine
While the macOS Catalina signed in, from the menu bar click on “Devices>Optical Drivers, then click on “Choose/create a disk image”.

Open Guest tool
Once the “Optical disk selector” window opened click on the Add button.

Click Add
Now select the Guest tool of macOS Catalina and click Open

Click Open
The Guest Tool is ready, click choose

VirtualBox Guest tool
Automatically, the VMware tools window will open. To install VMware tools on macOS Catalina on VirtualBox right-click and select open.

Install VMware Tools
Click Continue on the welcome wizard of VMware tools

Click Continue
In this step, after clicking on the install button a warning window will pop-up. That is it “When this software finished installing, you must restart your computer. Are you sure you want to install the software now?”. If you want to continue then click on continue installation.

Continue installation
Here type your username password and click install software

Install software
During the installation, the System Extension Blocked warning will pop-up. Click on the System Security Preferences.

Click on System Security Preferences
While the Preferences window appeared then click on the lock icon. Enter your username password and click unlock.

Click Unlock
After clicking on unlock you will need to Allow the Extension, by click on Allow option. And close the preferences window.

Allow
After that, the installation successfully is done click on restart.

Restart
Once the Virtual machine restart, again coming back to the macOS Catalina screen. You will see again the System Extension Blocked. Once again click on System Security Preferences.

Open System Security Preferences
Click on the lock icon, then enter your username password and click unlock.

Unlock
Click Allow and close the Preferences window

Click Allow
To check the Graphic Display navigate to the corner of the screen and click on the Apple icon. After that, click “About this Mac”.

Check Screen Display
When the window opened your macOS Catalina screen display should be 128MB. On the other hand, you need to reinstall the Guest Tool.

The screen display of macOS Catalina on VirtualBox
Related:
How To Use macOS Catalina full screen on VirtualBox on Windows
Final Point
That’s it, the procedure of installing the Guest Tool on VirtualBox on macOS Catalina is pretty easy. I hope you successfully done and install the Guest tool. Again if there is any issue then describe or share with us in the comment section.
Steve Wilson
I’ve run the process to install the Guest Tool 3 times. I get no error messages, but my video memory is still 7MB. Any idea what I’m missing?
Thanks
Steve
Zayn
Hi, Steve, have you followed each step correctly?
Arpie
Thank you. My no more graphics glitches in my Catalina VBox. 128MB memory. Wish the devs will just increase it more …
derkallevombau
Thank you very much, man!
Your VMWare Tools work flawlessly on Catalina, as opposed to the VBox Guest Additions which fail to install. It seems they try to write to a read-only FS.
GuinnessStout
I also thank you. My installation is not perfect. Can’t seem to get keyboard shortcuts to work ie copy and paste but copy and paste works via mouse and textedit. Also huge plus is being able to use FileManager.