|You've pretty obvious been "hit" with a pest or three.|
For starters - and there may be more later, run the following in this order:
JunkWare Removal Tool (JRT)
JRT will install itself to the desktop, from where you run it. It will open into a dos style window; follow the instructions therein. It will reboot the system as part of its process.
Then download the Kaspersky Rescue Disk. You download the ISO; burn to a DVD. Boot with the DVD.
It will load itself into RAM only; then will go online to update itself. After-which it will scan the entire hard drive and deal with anything it find... The Kaspersky item is Linux based utility. It scans for pests that can frequently hide within the windows OS when it's booted up; and thus avoid detection/removal. Kaspersky gets around that "trick".
http://tinyurl.com/373ojxb --- this last link is detailed how to from another site; worth to read.
Do NOT entertain any factory reset/restore routines - yet... Likely the problems can be dealt with without going that path. Retain any logs generated - as they may be useful later.
All of the above are"free"; regularly recommended here, and safe to ue.
When you install anything off the web (the above included) do NOT use the AUTOMATIC instal option; use MANUAL option. Carefully uncheck all those pre-checked boxes - all so helpfully pre-checked for you. You don't need what they offer to install; invariably nuisances to eradicate. Frequently those unwanted add-ins cause problems that mean you have to run assorted clean out utilities anon...