To check your ram (and other information about the system), go to ‘Computer’ & right click/open that. Besides opening your laptop up, the only way I know how to check your hard drives rotation speed is going to "control panel’ & look to see what model hard drive you have, then look that up on Google (?) If it’s a good new laptop it’s probably 7200 RPM. Never used a slower drive than that myself, but if it is I’d change it to a 7200 RPM drive. If you’re serious about recording audio on your laptop, I’d see about getting a 2nd hard drive.
But I tend to think it may be ASIO4ALL drivers not working for you, or you audio card not wanting to play well with that laptop. Consider trying another audio card with it’s own proper ASIO drivers . Get a decent audio card if you’re serious about recording.
Then again, if you’re using only one hard drive, and with a bunch of VSTi’s, that can be a problem if you’ve got a lot going on, with the hard drive working so hard. Most DAW users use 2 or 3 hard drives…
#1 HDD OS/Programs
#2 HDD VSTi sample content
#3 HDD song projects
The only way I know how to give an example; more lanes on a freeway allow more traffic to pass through, otherwise traffic will bottleneck. In the case of a computer, information can bottleneck.
Another thing I’d check while at it, it Cubase’s performance meter, and your Task Manager for Ram & CPU usage. At some point, any computer will start choking if you’re just running more than it can handle. Even my old DAW, a quad core @2.5 Ghz with 4 GB ram can do a lot. But times when I just had too much going, I’d get strange things happening…like tracks playing out of time with each other, not to mention the usual issues.
Know thy machine!
You should always make sure of your sample rate going into a project within your computer & your audio interface. Some audio interfaces don’t like to work set to certain rates (so I hear).