If you are looking for an antivirus program, Kaspersky Antivirus has a good reputation in the antivirus industry. It has always been quite easy to download and install the Kaspersky antivirus on Windows, but for instance, if you have encountered Kaspersky antivirus error 27300, then here is the guide to resolve this error.
Before continuing, check the compatibility of PC requirements before purchasing or installing an antivirus on your system. Meanwhile, sometimes the error could be there because of a missing driver, a missing permission, or any malicious application. So without further ado, let’s check this out.
How do I fix Error 27300 when installing Kaspersky AV on Windows?
Generally, it doesn’t have a problem installing any antivirus program on Windows. Here is a quick step-by-step troubleshooting guide that can help you resolve the error on Windows.
Remove a conflicting AV program.
If your system already has antivirus installed, then you first need to uninstall the previous antivirus if you want to install the latest antivirus solution.
- Open Windows Run, then enter Appwiz. cply and hit enter.
- After that, check the old antivirus and then uninstall the program.
- You can do so by right-clicking on the program and then selecting Uninstall.
- After that, follow the on-screen wizard instructions to uninstall.
- That’s it. Restart your computer.
Once you uninstall the old antivirus tool, simply install the Kaspersky AV program. I hope you don’t go through any issues.
Use the KAV Removal Tool.
As we have mentioned, this is occurring because your system does not have any other antivirus installed on your device. Which might be creating a conflict while installing the Kaspersky antivirus tool. You can use the KAV-Removal tool to completely resolve this error; hence, it was officially developed by Kaspersky.
- Download the Kaspersky Virus Removal Tool.
- Install the product and then follow the on-screen wizard to uninstall or remove any unwanted leftover files.
- Once you are done, restart your computer.
Disable Digital Signature Verification of Drivers
Windows uses a digital signature to verify that you installed it on your system. This helps Windows be on the safe side and prevents the installation of malicious driver codes. So, temporarily disabling it can potentially help you out.
- Open the Start menu, and then click on Power.
- After that, click and hold the Shift key and click on restart.
- While your computer is restarting, it will open the advanced start-up menu.
- Click 7 or F7 on your clipboard in startup mode.
- Now, it will disable digital signature verification and restart your system.
- Once it is done, try to install the Kaspersky AV tool.
Update Windows 10 Installation
If your computer shows you 2147024770 or the 536870329 error code, then you need to update your Windows to the latest version.
- Open Windows Settings, and then head over to Update and Security.
- Click on Check for an update; if you find an update, install it.
- That’s it.
Rename the Catroot2 folder.
It is an update process file; by default, it was named Catroot, so by renaming it in safe mode, you can simply resolve the issue.
- Restart your computer and also press the shift key.
- Now, you will enter CMD/Power Shell mode.
- Enter the executed code.
- net stop cryptsvc
- ren %systemroot%\system32\catroot2 catroot2_old
- net start cryptsvc
- Restart your PC and try reinstalling the Kaspersky AV tool.