Here is what we have:
Kaspersky says this file in red which is in your Temp folder in Local Settings, is bad. At the very least it is adware and I would delete it if it were my computer. You may scan it here if you wish:
http://virusscan.jotti.org/
C:\Documents and Settings\natasha\Local Settings\Temp\vol_bt_all.exe/data0033 ------> AdWare.Win32.MegaSearch.p skipped

Once that is resolved, you have these two infected System Restore files, after them is the instructions for cleaning them.
C:\System Volume Information\_restore{202550A8-7A33-4BCA-9586-051D24DDBF8F}\RP871\A0162132.dll ------> AdWare.Win32.MyWay.v skipped
C:\System Volume Information\_restore{202550A8-7A33-4BCA-9586-051D24DDBF8F}\RP871\A0162134.dll

Turn off System Restore.
On the Desktop, right-click My Computer.
Click Properties.
Click the System Restore tab.
Check Turn off System Restore.
Click Apply, and then click OK.

Reboot

Turn ON System Restore,
On the Desktop, right-click My Computer.
Click Properties.
Click the System Restore tab.
UN-Check *Turn off System Restore*.
Click Apply, and then click OK.

Safe surfing