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Solve : Malware deleted some of my system files and now I can't uninstall?

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Hi guyz I'm a newbie here and not much of a techno geek.

My torch BROWSER began crashing and I'm not able to uninstall it. My first response was to google it and found about a torch virus. I wanted take it off so I downloaded malwarebytes and scanned my netbook. Its OS is windows 7 ultimate. Once I did a threat scan it showed 47 infected files and quarantined it. My gut said not to delete any of it but to save time I deleted all of it. Now my computer won't uninstall anything like revo UNINSTALLER, NCH videopad and etc.

Everytime I try to open a program, restore file things like these pop out:

  • AvastUI.exe - Application error memory could not be written
  • Werfault.exe  - Application error memory could not be written
  • dllhost.exe - Application error memory could not be written
  • rundll32.exe - Application error memory could not be written
  • sdclt.exe - Application error memory could not be written
  • mobsync.exe - Application error memory could not be written

When I try to uninstall these keeps popping:
  • Werfault.exe  - Application error memory could not be written
  • rundll32.exe - Application error memory could not be written
And says that it was already uninstalled and asks me if I wanted to remove it from the programs and features list.

and when I try to restore files these keeps popping out:
  • Werfault.exe  - Application error memory could not be written
  • rundll32.exe - Application error memory could not be written

Like this: The instruction at 0x00000000 referenced memory at0x00000000. The memory could not be written.

And when I tried msconfig it won't open and kept popping:
  • Werfault.exe  - Application error memory could not be written
  • rundll32.exe - Application error memory could not be written
  • dllhost.exe - Application error memory could not be written

Help what should I do? Thanks for your time.

Post edited for content...Oh yeah. Forgot to tell everyone. My brother borrowed my netbook and deleted my backup memory to free some space. That maybe a reason it won't restore anything.I'm afraid your brother might have messed up something. Do you have the OS disk? Please run this even if you don't have the disk and tell what happens.

1/ Click the Start button.

2/ From the Start MENU, Click All programs followed by Accessories.

3/ In the Accessories menu, Right Click on the COMMAND Prompt option.

4/ From the drop down menu that appears, Click on the Run as administrator option.

5/ If you have the User Account Control (UAC) enabled you will be asked for authorisation prior to the command prompt opening. You may simply need to press the Continue button if you are the administrator or insert the administrator password etc.

6/ In the Command Prompt window, type: sfc /scannow and then press Enter.

7/ A message will appear stating that the system scan will begin.

8/ Be patient because the scan may take some time.

9/ If any files require replacing SFC will replace them. You may be asked to insert your Vista DVD for this process to continue.

10/ If everything is okay you should, after the scan, see the following message Windows resource protection did not find any integrity violations.

11/ After the scan has completed, Close the command prompt window.


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