i am using kali rolling today when i hit command apt-get dist-upgrade then it showed me some update required total package was 114 MB i was hit yes after update my synaptic system is not working i checked in mouse setting but there is o setting releated to touchpad i can't control my pointer speed even when i start my virtual machine it was totaly suck my complete system was hange even i could not move my mouse pointer. i tried everything then i found msfvenom command is not working. i checked everything and every service is runing and after update it crashed twice which was unexpected.