Download latest kernel from https://www.kernel.org/
cd ~
wget https://cdn.kernel.org/pub/linux/kernel/<version>/linux-<version>.tar.xz
tar -xf linux-<version>.tar.xz
cd linux-<version>get kernel build config for WSL
# in ~/linux-<version>
mkdir Microsoft
wget -O Microsoft/config-wsl https://raw.githubusercontent.com/microsoft/WSL2-Linux-Kernel/refs/heads/linux-msft-wsl-6.6.y/arch/x86/configs/config-wslcustom version tag:
Makefile: changeEXTRAVERSIONMicrosoft/config-wsl: changeCONFIG_LOCALVERSION
will be displayed as <kernel-version>[EXTRAVERSION][CONFIG_LOCALVERSION]
install the dependencies: build-essential flex bison dwarves libssl-dev libelf-dev cpio bc python3
begin compile kernel, run
# in ~/linux-<version>
make -j12 KCONFIG_CONFIG=Microsoft/config-wsl # j12 is j<number> equal to CPU logical processors
# OR: custom kernel in tui
make -j12 menuconfig KCONFIG_CONFIG=Microsoft/config-wsl
# compilation successful:
Kernel: arch/x86/boot/bzImage is readythen move (or copy) ~/linux-<version>/arch/x86/boot/bzImage to /mnt/c/<path-to-windows-where-want-to-place>/wsl-kernel
edit ~/.wslconfig
[wsl2]
kernel=C:\\<path-to-kernel>\\wsl-kernelfinally, restart wsl and check uname -r