I started with a Macintosh 128K in 1984 and switched to PC around 1988 using AutoCad. I guess the first question is: What is 'this topic'? I'm assuming it's about issues with a Dell laptop. My wife's laptop is a Dell about 9 mo old and it is running Win7 Home 64 bit, 8 GB RAM, 2 HD. She never updates anything. Today I started with Win Update. The 2 updates were not installed. That is a first. I spent 3 hr online trying to find solutions. The latest message is "cmd.exe is corrupt". Say what? Where/when did that happen and what do you do about it? That too is a first. After trying to FIX things for 3 hr, the laptop does seem to run faster. :-)
Since then I've tried to RESTORE her laptop to an earlier restore point. That's not happening. I tried 3 different restore points and there was grief at each one.