Since the restore to factory settings, you will need to install your Windows updates. If you are still unable to boot normally without the freeze issue, then while in safe mode, run the system defrag utility. Even if it says "you do not need to defrag this volume", do it anyway. The reason is because the threshold for a Windows user to receive that message is quite high. I forget exactly what it is, but I believe it's upwards of 17%. It seems to me I saw a fragmented disk that far out when the analysis still said "you do not need to defrag this volume". That's way too fragmented to suit me. I find that whenever my system fragmentation is greater than 3%, things slow a bit. So, for me a system defrag once a week does it. Try that, then install the Windows updates. Afterwards, believe it or not, you will need to defrag again. Once you've completed all that, post back the results.
I see nothing else in the logs that would indicate a reason for your freeze or lag issue...except perhaps the Symantec Internet Security. That program is a huge resource hog. It's up to you if you want to keep it, but if you are interested, I have other suggestions for your on board security. Lemme know.
