Unable to install anti-virus software.

I first got an error message from from my anit-virus (Trend Micro) and said I should reinstall the program. I uninstalled then tried to reinstall and I get this error message: "unable to install the kernel drivers tmtdi.sys".

I tried to installing AVG free 8 and it wont install.

I ran Windows Defender, Combo fix & Malwarebytes. It still did not fix the problem.

I've searched around on the internet and not sure if I should try anything else or if I am making the problem worse. I dont want to format my computer if possible.

Thanks in advance.

Sorry, I forgot to mention that I am running Vista 32 sp 1 and using Trend Micro PC-Illin Internet Security 14.

Are you running Ad Aware? if so completely remove it from your system, and then try reinstalling AVG. if this works you can always reinstall Ad Aware later

Are you running Ad Aware? if so completely remove it from your system, and then try reinstalling AVG. if this works you can always reinstall Ad Aware later

Yes I was running Adaware, but I did unistall Adaware and Malwarebytes and tried reinstalling Trend Micro (came with computer) & AVG and still have the same problem.

I realized after reading the forum guidelines, that I may have cause the problem myself. I was searching around the internet for answers to my problems and following suggestions from other users
to try different programs (adaware, malware, spydoctor combofix & a few others I cant remeber that I tried then unistalled). I think that I may have deleted an important file/s that I needed, rather than sending to quarantine. I also ran ComboFix before I stumbled on to this site. After reading the Combofix guidlines on this site, I probably shouldn't have run it until I was instructed to do so.

So now that I have read the posting guidlines for the formus, I realized that I may not be posting this in the right place. I have followed the steps and I will start a new topic with hijack logs in the " HijackThis Logs forums".

I apologize for duplicate postings. Please post any new replies under my new topic (same heading: unable to install any anti-virus programs) in the "HijackThis Logs and Virus/Trojan/Spyware/Malware Removal"
forum.

Thanks

Hello IfIonlyknew,

Now that you have a log posted here: http://www.bleepingcomputer.com/forums/t/203163/unable-to-install-any-anti-virus-software/ you should NOT make further changes to your computer (install/uninstall programs, use special fix tools, delete files, edit the registry, etc) unless advised by a HJT Team member, nor should you continue to ask for help elsewhere. Doing so can result in system changes which may not show in the log you already posted. Further, any modifications you make on your own may cause confusion for the helper assisting you and could complicate the malware removal process which would extend the time it takes to clean your computer.

From this point on the HJT Team should be the only members that you take advice from, until they have verified your log as clean.

Please be patient. It may take a while to get a response because the HJT Team members are EXTREMELY busy working logs posted before yours. They are volunteers who will help you out as soon as possible. Once you have made your post and are waiting, please DO NOT make another reply until it has been responded to by a member of the HJT Team. Generally the staff checks the forum for postings that have 0 replies as this makes it easier for them to identify those who have not been helped. If you post another response there will be 1 reply. A team member, looking for a new log to work may assume another HJT Team member is already assisting you and not open the thread to respond.

If after 5 days you still have received no response, then post a link to your HJT log in the thread titled "Haven't Had A Reply In Five Days?".

To avoid confusion, I am closing this topic. Good luck with your log.

Orange Blossom