Had the same issue with KVRT 20.0.10.0 and Win 11 22H2 (22621.2428)
I was able to fix it by deleting the kvrt drivers with windows restore cmd
Run "Command Prompt" from the "Troubleshoot -> Advanced Options"
Go to "Windows\System32\drivers" on the disk of your windows installation (you can list all disks with the `fsutil fsinfo drives` command and find the right one)
fsutil fsinfo drives
cd /D <YOUR_DRIVE>:\Windows\System32\drivers
Search for *.sys files created recently (list by creation time). Must be some <random-8-characters>.sys and klupd_*.sys
The new KVRT version Crushed my Windows 11
in Kaspersky Virus Removal Tool
Posted · Edited by zzamzam
Had the same issue with KVRT 20.0.10.0 and Win 11 22H2 (22621.2428)
I was able to fix it by deleting the kvrt drivers with windows restore cmd
dir /OD /TC