Hello and welcome to TSF :smile:
Please read this sticky: http://www.techsupportforum.com/f112/if-you-think-your-computer-is-infected-203704.html
If you cannot complete any of the 5 steps for whatever reason, just continue on with the next one until they are all completed, and post your logs in The HJT Help Forum; where an Analyst will assist you. However, it is very important to make mention of any of the steps that you were not able to complete.
Please note that the HijackThis forum is very busy and it may take some time to get a reply.
Please read this sticky: http://www.techsupportforum.com/f112/if-you-think-your-computer-is-infected-203704.html
If you cannot complete any of the 5 steps for whatever reason, just continue on with the next one until they are all completed, and post your logs in The HJT Help Forum; where an Analyst will assist you. However, it is very important to make mention of any of the steps that you were not able to complete.
Please note that the HijackThis forum is very busy and it may take some time to get a reply.