random reboots while normal pc use and also search site redirects

ok sorry for the abcense but we have had net trouble here. a line went down ive not had a chance to complete the next step. ill get on it thursday evening when i get off from work

srry for any delay

@ Jacee
I really admire all the trouble and work you go through; it's above and beyond the call of duty.
There is question though that i have often wanted to ask when looking at the postings in the security section.
Please don't lynch me. So here it goes.
Considering all the steps you have to go through to get the problem fixed (and not only here) wouldn't it be a lot easier/faster to wipe off everything from the HD, clean it and then reinstall it all from a backup made on an external harddisk? (everyone should actually have one made at regular intervals).
Sometimes i see instructions to remove a malware and then the answer comes back that it did not solve the problem (for whatever reason) and something different is suggested which is then tried.
Would a complete reinstall (with all extra programs included) be sufficient to get rid of even the most obnoxious malware? And wouldn't that be preferable to "fiddling around" by both sides to get the malware exterminated if it involves a complicated operation?
Maybe i should not ask the question here. A new thread instead?

Jacee said:

@ FranzB
In a perfect setting, that would definitely be the way to go.

Not everyone who owns a computer does this, so there are many of us who have been trained (and are training others) to help get rid of the crippling malware. It doesn't always go as planned, especially with rootkits (which I loath!), but until I find out that there is a rootkit involved, I will continue with my help.

Maybe the OS should have an addition that makes it inescapable to make an external, complete backup. The computers would then have to be sold with an appropriate external storage device (with directions how to use it). Costs? Right, but the costs of all these breakdowns is probably higher in the long run. It was the same story long ago with Nader's campaign for seatbelts (and crash zones). Sure they cost extra money but the savings in health care far outweigh the costs of the belts. It has even become law in most countries to wear them, not just have them in the car. And in some cars you can't even get around putting them on. Any talk about personal freedom is, in this case, nonsense and a misuse of terms.
Once again i am not criticizing help obtained here and elsewhere. But i think there would not be enough people like you if everyone who gets a malware would ask for help on the help forums. And it will only get worse.

ok im so sorry for any delay ive been very busy at work with move-ins and make readys.
here is the result of my eset scan ive done a few mins ago on jan 14th 2012.

C:\Qoobox\Quarantine\C\ProgramData\Tarma Installer\{2E1037EA-038A-425F-86B9-6CD19B8497E9}\_Setupx.dll.vir a variant of Win32/Adware.Yontoo.B application
C:\Users\CD\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\0\77af54c0-598ea692 Java/Exploit.CVE-2011-3544.H trojan
C:\Users\CD\Documents\ljwl.exe Win32/Adware.WinAntiVirus.AD application

i chose it to delete the infected files