My Lenovo laptop had been working fine without any issues for about a year. All of a sudden, I keep receiving a BSOD every few minutes related to the win32k.sys file. The BSOD happens randomly, sometimes within a minute of restarting the computer or sometimes within an hour. Because of this unpredictability, I cannot use my laptop because I don't know when it will crash and cause the files I am working on to become lost. I ran the Windows diagnostic tool which shows up during boot-up and tested the memory to see if that was the issue, but that test came back clean. Please let me know if additional information is needed (besides the basic requirements, which have been attached), and thanks in advance for any help.