After investigating this particular issue, it turns out that there are several different underlying causes that might be responsible for the apparition of this error code. Here’s a list of verified culprits that might be behind this error code: Now that you are familiar with every potential culprit that might be responsible for this error code, here’s a list of methods that other affected users have successfully used to get to the bottom of this issue:
Method 1: Uninstalling Incompatible applications (if applicable)
The number one cause that will cause Error 27300 to occur when installing Kaspersky Antivirus is an incompatible app that is already installed on the target computer. If this scenario is applicable, you can fix the issue by uninstalling the incompatible application prior to re-trying the installation of Kaspersky Antivirus. Generally, conflicting applications are limited to other 3rd party competitors AV and firewall products like Avast, AVG, eTrust, McAfee, ZoneAlarm, etc. Here’s a full list of incompatible programs that might cause issues when installing Kaspersky Antivirus. If you determined that a program that’ incompatible with Kaspersky Antivirus is currently installed on your computer, follow the instructions below to uninstall it from your computer: If this scenario is not applicable, move down to the next potential fix below.
Method 2: Installing every Pending Windows Update (Windows 10 Only)
If you are using Windows 10, it’s important to ensure that you have all the pending updates installed (especially the infrastructure updates that Kaspersky needs in order to be installed correctly). Several users that were also encountering the Error 27300 when attempting to install Kaspersky Antivirus have reported that the installation was finally successful after they took the time to install every pending Window 10 update from the Windows Update screen. If you think this scenario looks like it could be applicable, follow the on-screen prompts to install every pending Windows 10 update on your computer: In case the installation still bogs down with the same Error 27300, move down to the next potential fix below.
Method 3: Modify the Network ‘Config’ Parameter (Windows 7, Windows 8 Only)
If you’re encountering this issue on Windows 7 or Windows 8.1, the installation most likely fails due to an improperly configured network registry key – If this scenario is applicable, you should be able to resolve the issue by renaming the Network Registry parameter in order to accommodate the code used by the installation of Kaspersky Antivirus. Several affected users have reported that the issue was fixed and the installation of Kaspersky Antivirus was finally successful. Follow the instructions below to modify the config parameter in order to resolve the installation glitch of Kaspersky Antivirus on Windows 7 and Windows 8.1: In case the same kind of Error 27300 is still occurring, move down to the next potential fix below.
Method 4: Using the Kamvremover tool
As it turns out, this particular issue can also be caused by some type of remnant files from a previous installation of a Kaspersky product that is interfering with the installation of Kaspersky Antivirus. Several affected users that were also encountering the Error 27300 when installing Kaspersky Antivirus have reported that the issue was finally resolved after they used the kavremover tool to remove any remnants from a previous installation before repeating the installation once again. Note: Keep in mind that upon running the kavremover the utility will also delete every license information along with every application setting that is currently saved. If you previously had another Kaspersky product installed on your computer or you previously attempted a botched installation, follow the instructions below to use the kamvremover tool before retrying the installation of Kaspersky Antivirus: If you’re still seeing the same Error 27300 when attempting to install Kaspersky Antivirus, move down to the next potential fix below.
Method 5: Modifying the Startup type of the Network Setup Service
According to some affected users, you can also expect to see the Error 27300 popping up due to a service that needs to be enabled (Network Setup Service) in order for the installation of Kaspersky Antivirus to complete. Several affected users have reported that the issue was resolved and the installation was successful after they used the Services screen to enable the Network Setup Service before retrying the installation of Kaspersky Antivirus. If you think the Network Setup Service is disabled and it’s causing the installation to fail, follow the instructions below: In case you’re still seeing the Error 27300 when attempting to install the 3rd party security app, move down to the final fix below.
Method 6: Resetting the WU Dependencies from Safe Mode
If none of the methods above have proven to be effective in your case, you should check to see if the issue is not related to a WU component that is currently stuck in a limbo state and is preventing the installation of Kaspersky Antivirus. Several affected users that were dealing with the same kind of issue have reported that they finally managed to bypass the apparition of the Error 27300 after they booted in SafeMode and run a series of commands that have reset the WU Dependencies required by the installation of Kaspersky antivirus. If you’re looking for specific instructions on how to do this, follow the instructions below:
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