How would Windows 10 update affect Kaspersky Bootloader?

Microsoft has now removed the Windows Security update addressing problems with the third-party boot managers after that the users complained about the updates that are the reasons of systems stop working. The update, which was part of the Microsoft’s normal Patch released recently, fixed a security vulnerability that affects the third-party Unified Extensible Firmware Interface (UEFI) boot managers. UEFI connects the firmware of the computer to the operating system and is in charge of code which runs when the system first boots up. The Secure Boot UEFI feature prevents unsigned or un-trusted code from running during boot.

Microsoft was under rising strain this week to further overhaul its quality assurance processes after the organization was forced to pull a Windows 10 security update by following thousands of the installation reports issues, including security warnings, issues booting and the system freezes.

The security researchers say KB4524244 was a bid to cancel a Microsoft-signed Kaspersky UEFI bootloader that could be used to avoid Secure Boot (a security standard developed to make sure that device boots only software which is trusted and reliable by approved OEMs. For more, reach the technical experts by calling Kaspersky Customer Care.

Now, we will move with some questions that might come in your mind with Kaspersky UEFI Bootloader

How would Windows 10 update affect Kaspersky Bootloader?

Kaspersky is involved in the story:

The update deals with a security vulnerability which was found in Kaspersky Rescue Disk, and after that publically disclosed in April 2019. This was further fixed in August 2019.

The fixed applied by Microsoft:

Microsoft has updated a special and unique database of the canceled UEFI signatures (UEFI Revocation List File) in February 2020. It has been done to prevent attacks against the Secure Boot by using the doctored earlier versions of the Kaspersky Rescue Disk.

The reason behind Microsoft revoked the update:

For helping a sub-set of the affected devices, the standalone security update has been revoked and won’t be offered again from the Windows Server Update Services, Windows Update, or Microsoft Update catalog. It doesn’t affect any other update like Latest Cumulative Updates, Security Only, or Monthly Rollups updates.

Is there any possibility Microsoft fix the problematic update:

Yes, the aforementioned page states, “We are working on an enhanced version of this update in the coordination with our partners and will release it in a further update.

About Kaspersky Rescue Disk:

It is a free tool for cleaning your infected computer even if the operating system will not load

About Vulnerability:

It was possible for running an un-trusted UEFI image on a computer protected by Secure Boot technology. It could be completed by exploiting a custom UEFI loader used by the Kaspersky Rescue Disk. The Practical attack scenario required physical access to a PC.

Fixed applied by Kaspersky:

A fixed UEFI loader which doesn’t have this vulnerability was actually released and included in Kaspersky Rescue Disk in August 2019. In addition, Kaspersky endpoint security products are able to identify the attempts to exploit the vulnerability since April 2019.

Is there any Kaspersky Involvement in fixing the Update:

Well, the answer is no, Microsoft has not reached out to Kaspersky concerning the update error. After the detailed internal study, our experts concluded that Kaspersky products haven’t been a cause of this error.

Lessen the risk while waiting for the new Microsoft Update:

If you have distress about the physical attacks on your computer, make sure you lock down the boot order, safeguard BIOS with a password, and put the seals on the cover screws. In addition, Kaspersky Endpoint protection products are able to identify exploitation attempts against vulnerable bootloaders.

KB4524244 installed correctly on the system:

You don’t need to remove the update and might use your operating system as usual. It isn’t vulnerable to the aforementioned problems. The vulnerable bootloaders won’t run if the system is safeguarded by Secure Boot. You will need to make sure that you use a recent version of Kaspersky Rescue Disk should need for this product to arise.

The affect of un-installation KB4524244 or it wasn’t installed in the first place:

Vulnerable bootloaders might stay bootable on your system. You will need to install the modified update when it is released by Microsoft.

Well, these things definitely resolve your queries about Kaspersky Bootloader. Call on Kaspersky Helpline to get in touch with the technicians for instant and reliable support regarding resolution. The teams are always there to help you in any manner they can. The teams are available 24x7 to help.