As advised, I have:
1. Updated my Synaptic touchpad driver
. (Uninstalled the previous driver and installed the new driver from the Synaptic website link given).
2. Updated the SD Card and Modem driver from the Sony website. (Used the Windows Vista Business 32-bit drivers
. I am not sure but I believe that was my original OS.)
3. I removed the Vaio Power Mangement Program.
4. I ran the Driver Verifier. After using the settings as advised, I restarted the computer upon being prompted. When my computer was rebooting, a blue screen appeared. After that Windows Startup Recovery ran, which made some automatic repairs. After restarting again the computer resumed normally.
What do I do now?