I've been using windows 7 home premium (64 bit) for a few months now. I upgraded without wiping my data from windows vista. Everything was perfectly fine up until recently. My windows has started to crash. The started when my laptop (a Sony Vaio) was left idle and I would come back to find everything was frozen. This problem started to become more and more frequent, and would start happening while I was using the computer as well. Now, after startup, my computer crashes after about 3-5 minutes of use everytime. Everything becomes completely frozen and I need to hold down the power button. A few times I have gotten the infamous 'blue screen of death' and other times I just get errors saying 'Windows explorer is not responding'.
The only thing I can think of that I changed was installing a driver
to a printer (Lexmark X5450). It was around this time, or close to around this time when I started to have issues (I think). The driver was installed also before I upgraded to 7 from Vista (the vista version of this driver was on there before the upgrade, but the 7 driver needed to be installed to make it work).
The reason I call this an 'unusual' crash is because the problem got worse over time to the point where I can barely use my PC anymore. Also, that the crash doesn't always give me the blue screen and doesn't always tell me that windows explorer is not responding.
ps: I'm not the most technical savvy person in the world.