First of all, you need to stop clicking on and downloading things or even opening e-mails from sources that you don't recognize. If you did agree to that $600.00 contract try contacting them again to cancel it but don't rely on that alone even if they agree. Depending on what method of payment you used (Visa, Mastercard, etc.) contact your financial institution to see if you can cancel the transaction.
PC Power Speed is a rogue program and you need to uninstall that. Please do that after taking care of the contract and then do the following:
Please download DDS by sUBs to your desktop from one of the following locations:
http://download.bleepingcomputer.com/sUBs/dds.scr http://www.forospyware.com/sUBs/dds
Double-click the DDS.scr to run the tool.
When DDS has finished scanning, it will open two logs named as follows:
DDS.txt
Attach.txt
Save them both to your desktop. Copy and paste the contents of the DDS.txt and Attach.txt files in your reply please.
Please download GMER from:
http://gmer.net/index.php
Click on the "Download EXE" button and save the randomly named .exe file to your desktop.
Note: You must uninstall any CD Emulation programs that you have before running GMER as they can cause conflicts and give false results.
Double click the GMER .exe file on your desktop to run the tool and it will automatically do a quick scan.
If the tool warns of rootkit activity and asks if you want to run a full scan, click on No and make sure the following are
unchecked on the right-hand side:
IAT/EAT
Any drive letter other than the primary system drive (which is generally C).
Click the
Scan button and when the scan is finished, click
Save and save the log in Notepad with the name ark.txt to your desktop.
Note: It's important that all other windows be closed and that you don't touch the mouse or do anything with the computer during the scan as it may cause it to freeze. You should disable your screen saver as if it comes on it may cause the program to freeze.
Open the ark.txt file and copy and paste the contents of the log here please.