I have an HP Compaq 2230s Notebook PC which has recently been reformatted. However, after it has been reformatted and installed with Windows 7 Ultimate, loading became very slow. I downloaded a free AVG antivirus trial from the internet and after that I have downloaded some drivers on the official HP website such as those for the HP webcam, McAfee antivirus, and intel graphics. But I noticed that after I have downloaded some drivers, the problem worsened. My laptop shuts down every now and then under the normal mode. Sometimes it lasts 5 minutes and now, it keeps shutting off within less than a minute. .
When starting up, my laptop takes a very long while. After displaying the welcome scree, it suddenly turns black and then again takes a while before the programs show up. However, all these problems do not happen on Safe Mode with Networking. What could be the problem and the solution?