I just got my Lenovo Yoga Tablet 2, 10.1inches, windows 8.1 version with Bing. The tablet computer has been plagued with frequent crashes that shows the famous blue screen of death (BSOD). I went ahead and installed the updates but that did not solve the problem. I refreshed the system but no luck. 
I went to Lenovo forums and the only related problem I could find there was the tablet's refusal to come out of sleep mode after about 20minutes of sleep or more which also happens to mine occasionally. The solution provided there which was to update the BIOS didn't work either. 
Whenever the BSOD happens, it shows an error message that says "DRIVER_IRQL_NOT_LESS_OR_EQUAL" and then it starts the generation of dump files.
I did some research and discovered that this is a known issue with windows 8. When I analyzed the dump files with BlueScreenView, I saw that there was an indication of possible cause being 'ntoskrnl.exe'. I cannot dare to try and uninstall this, whatever it is, because of causing a permanent damage to the device. 
Please good people, help me resolve this issue as sending the Tablet back to Lenovo in USA will be a difficult option. A friend bought it while she was on vacation in the USA and brought it back for me. Thank you.
Link to last 5 crash dump files 
https://onedrive.live.com/redir?resid=5CFEECF489DE8C27!571&authkey=!AEEH0sZpcPAnUBQ&ithint=folder%2c

• Edited by IKSector Wednesday, July 15, 2015 12:26 AM

The verifier DMP was corrupt.  You run memtest outside of windows (from USB/DVD) so verifier would not be running anyway. 

Lets run a system file check to find out why those updates have failed

Please run a system file check (SFC) & DISM (if necessary) if you are on win 8 or higher
All instructions are in our Wiki article below...
Should you have any questions please ask us.

System file check (SFC) Scan and Repair System Files