No application when trying to open programs

original title: damage after the virus - help?

I was attacked by a virus last (Vista 2011). I used malicious software to get rid off the coast and everything seemed fine at first.

However, I noticed that I can not open a single application. No IE, no Media Player, messenger even not. Not a single application opens without window asking me what program I want to open and IE giving only as an option before you send me the Microsoft page, telling me there is something wrong with the files.

I managed to work around the IE does not, and found things like problems with my registry mentioned online. When I tried to run regedit it says application not found - which tells me that there is a serious problem somewhere.

Also, it is said in my lower right corner updated Windows Installer % 0 but nothing that really happens. Normally, by right-clicking on it, it should bring up a screen but it is not popping up. I tried introducing via the Control Panel, but when I clicked on the security, said that there was not.

I am at a loss about what to do - anyone got any ideas on what might have happened? What is the rest of the virus? If it has damaged my registry and did something get deleted? Also, if I download anything (I tried to circumvent the failure in IE by downloading Google Chrome, it will let me download the file but not open it without asking once again with what program I want to run - I'm going along in circles)

All the tips and suggestions are grealty appreciated. Thank you.

Hello

see if that helps

http://www.Winhelponline.com/blog/restore-exe-file-Asso-Windows-7-Vista-incorrectly-associated/

and this

also run the sfc/scannow command.

http://support.Microsoft.com/kb/929833

Use the (SFC.exe) System File Checker tool to determine which file is causing the problem and then replace the file. To do this, follow these steps:

  1. Open an elevated command prompt. To do this, click Start, click principally madeprograms,Accessories, right-clickguest, and then clickrun as administrator. If you are prompted for an administrator password or a confirmation, type the password, or clickallow.
  2. Type the following command and press ENTER:
    sfc/scannow

    The sfc/scannow command analyzes all protected system files and replaces incorrect versions with appropriate Microsoft versions

If SFC detects the main problems it can't fix you may need to borrow a Microsoft dvd vista not an acer, HP etc. recovery disk and do a repair installation

read the below tutorial on how to perform a repair installation

http://www.Vistax64.com/tutorials/88236-repair-install-Vista.html

Tags: Windows

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