After purchasing and installing Kaspersky Total Solutions 2020, my PC frequently (more than once a day) crashes with blue screen BSOD Code "BAD_POOL_CALLER" and after analysing dump files the cause is attributed to klwtp.sys file. I do not have any system drivers of other virus softwares such as Malwarebytes, McAfee, AVG, Norton etc. (all properly removed from system by unistalling these softwares and then manually removing their sys drivers left behind post uninstallation). I use Windows 8.1 (64 bit) operating system. What needs to be done? Has money paid to Kaspersky gone waste and need to uninstall Kaspersky?