KB4601315 is released for Windows 10 v1909 users with several fixes. Here are the direct links to download KB4601315 offline installer.
Along with the KB4601319 update, Microsoft also released another cumulative update for Windows 10 v1909 users. If you are still using the older v1909 edition, this update applies to you. If possible, Windows 10 will automatically install the KB4601315 update in time. Unlike other updates, the KB4601315 is a security update that fixes several security threats and vulnerabilities. Prominently, the update fixes the privilege vulnerability in the win32k component. In addition to that, it also contains several security fixes for different Windows components like virtualization, frameworks, Windows apps, authentication, networking, etc.
All in all, being a security update, it is recommended that you install the update as soon as possible to fix any security holes. As I said earlier, the update should be installed automatically if the Windows 10 auto-update is enabled. If the auto-update is causing problems or to install KB4601315 on an offline machine, use the links given below to download KB4601315 offline installer.
After downloading the KB4601315 offline installer, you can install it like any other software. Keep in mind that this update is only applicable to Windows 10 v1909. Once installed, the build number will jump to 18363.1377.
Download KB4601315 offline installer
To make things easier for you, I found the direct download links for KB4601315 for both Windows 10 32-bit and 64-bit systems. Depending on your system type, download the update using the below links and install it like any other Windows software. After installing, restart the system and you are good to go.
KB4601315 x86 (32-bit) offline installer (download size: 221.1 MB)
KB4601315 x64 (64-bit) offline installer (download size: 447.0 MB)
If you want KB4601315 download links for Windows Server, ARM64 based systems, or some other version then go to the Microsoft update catalog website to find the appropriate links. All you have to do is click on the Download button next to the appropriate version.
Addresses a possible elevation of privilege vulnerability in the win32k component.
Security updates to Windows App Platform and Frameworks, Windows Apps, Windows Input and Composition, Windows Cloud Infrastructure, Windows Management, Windows Authentication, Windows Fundamentals, Windows Cryptography, Windows Virtualization, Windows Core Networking, and Windows Hybrid Cloud Networking.
That is it.