As it turns out, there are several different causes that might end up triggering this particular error during the installation of a program or game:

Method 1: Running Installer with Admin Access

One of the most common instances that are confirmed to produce the error code 2203 is when the installer doesn’t have sufficient permissions to copy files of this program inside the installation folder or use the temp folder during the installation phase. If this scenario is applicable, you should be able to fix the problem by ensuring that you’re logged in to an Administrator account and forcing the installer to open with admin rights. To open the program’s installer with admin rights, simply right-click on it and choose Run as Administrator from the newly appeared context menu. Then, at the UAC (User Account Control Prompt), click Yes to grant administrative privileges. Then, follow the next of the remaining instructions normally and see if you can complete the installation without seeing the same error code 2203.  If the error code returns, move down to the next potential fix below.

Method 2: Taking Ownership of the Temp Folder

The second most common instance that will spawn the error code 2203 is an instance in which the installer needs to make use of the temp folder to store some files temporarily, but can’t use it because the user account that you’re using doesn’t have ownership of the temp folder. In this case, the fix is simple but the exact procedure a little tedious – You will need to take ownership of the temp folder before trying the installation again. If you’re not sure on how to do this, follow the instructions below: If the same error code 2203 is still occurring, move down to the next potential fix below.

Method 3: Temporarily Disable the Firewall/Antivirus

As it turns out, this problem can also be caused by an overprotective antivirus suite that ends up blocking the installation due to a false positive. This problem is confirmed to occur with Avira and Kaspersky, but Windows Defender can also cause this problem with installers that aren’t published by a verified publisher. If you’re using a 3rd party tool, you should be able to circumvent the apparition of the error code 2203 by disabling the real-time protection before starting the installation that was previously producing the error. Of course, if you’re using a 3rd party suite, the steps of disabling the real-time protection will be different. Fortunately, most security suite will allow you to do this directly via the tray-bar icon – Right-click on it and see if you can identify an option that disables the AV. On the other hand, if you’re seeing this error with Windows Defender while trying to install an unsigned piece of software, you’ll likely need to temporarily disable both the Antivirus component and the firewall in order to avoid the error. If this scenario is applicable, follow the instructions below:

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