It appears the reformat was successful.
Your logs show no sign of Malware
You should make it a priority to bring all your software up to date, especially Windows, Java, and Adobe Reader.
Because your computer has been returned to it's factory condition much of the installed software is likely out of date and vulnerable to infection.
A few tips to help you stay clean
If you want to stay malware free, you must keep your software up to date. Here are a couple of free programs that will help with that.
- Secunia Personal Software Inspector - Copyright © Secunia.
- F-secure Health Check - Copyright © F-Secure Corporation.
Make sure you keep the latest updates installed for Internet explorer. (This is important even if you typically use a different browser).
Some reccomended reading
Computer Security - a short guide to staying safer online
What to do if your Computer is running slowly
A little caution while surfing can go a long way toward staying clean. Stay away from dodgy web-sites and be carefull what you click on.
Please let me know if you have any questions. If not please acknowledge that you have read this and I will have this topic closed.