BSOD onStartup

My PC will crash multiple times in a row, but then no crashes for weeks at a time. But one random morning it will crash 3-6 times in a row, then nothing. No idea what causes this, I have clean installed my Asus Laptop 2 times. Please help me figure this out.

Thanks

Hello and welcome to TenForums :)

The two recent crashes are both pointing to the Realtek WLAN driver being the issue:

Code:

BugCheck 139 KERNEL_SECURITY_CHECK_FAILURE, {2, ffff9780cf876d20, ffff9780cf876c78, 0}

*** WARNING: Unable to verify timestamp for rtwlane.sys
*** ERROR: Module load completed but symbols could not be loaded for rtwlane.sys
*** WARNING: Unable to verify checksum for win32k.sys
Probably caused by : rtwlane.sys ( rtwlane+59a55 )

See if you can update the driver either from Asus or Realtek.