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Windows 7: Unable to re-install Windows 7 after Trojan

13 Mar 2013   #1

Windows 7 Home Premium
 
 
Unable to re-install Windows 7 after Trojan

Hi,

My Sony Vaio i3 came with Windows 7 pre-installed on the system - activation code on a label under the machine, no disks.

I've now got a fairly serious Trojan wreaking havoc on my system and according to AVG the only way to rid it is to wipe Windows and start again. This doesn't bother me, I have all my essential files backed up and the system was running slow for a while before this anyway. However, for some reason I can't seem to re-install Windows. I have no backup (I know, silly me, please don't point out how stupid this is) so I have no restore point that I can return to.

When I tried to re-install Windows earlier I was told some of the restore files were missing and the operation would be terminated.

Any help would be greatly appreciated on this, just so I can blitz everything my system and start from scratch. I have moderate knowledge of computers but nothing amazing.

Thanks for any help.

Edit: Just scanned with Avast and the reason the file cannot be cured is because it is read only - the original file has been deleted and replaced with the Trojan.

My System SpecsSystem Spec
13 Mar 2013   #2

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Do you have a Windows 7 install dvd? If not do you need 64 or 32 bits? And what language? Home Premium,professional or ultimate?
My System SpecsSystem Spec
13 Mar 2013   #3

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Do this to open a command prompt when booting from install dvd
Command Prompt at Startup (option one)
Code:
diskpart
list disks
I assume disk 0 is the only one!
select disk 0
clean
exit
Now disk 0 is totally empty. No virus, even a rootkit survives this.

Now install Windows 7 clean
Clean Install Windows 7

Here you can find the drivers for your system http://esupport.sony.com/US/p/select...pe_group_id=10
My System SpecsSystem Spec
.


14 Mar 2013   #4

Windows 7 Home Premium
 
 

Hi, its Windows 7 home premium SP1 64 bit. I have no dvd's though, and the language I use is English UK.
My System SpecsSystem Spec
14 Mar 2013   #5

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by heavensenttom View Post
Hi, its Windows 7 home premium SP1 64 bit. I have no dvd's though, and the language I use is English UK.
Windows 7 Home Premium SP1-U ISO
English x64: X17-58997.iso

Download and burn to DVD. Check if you did it right so try to boot from DVD.
My System SpecsSystem Spec
14 Mar 2013   #6

Windows 7 Home Premium
 
 

Thanks, I've just bought some blank disks so I'll try this now.
My System SpecsSystem Spec
14 Mar 2013   #7

Windows 7 Home Premium
 
 

Sorry but I'm gonna need it slightly more basic.

I downloaded the last link you gave, extracted the folder X17-58997 to my desktop and burned that whole folder to a blank DVD.

What do I do now?

And I really appreciate you taking the time to help me.
My System SpecsSystem Spec
14 Mar 2013   #8

Windows 7 Ultimate 32-Bit & Windows 7 Ultimate 64-Bit
 
 

Take a look at the link below to see how you could burn the ISO to a DVD

Windows 7 USB/DVD Download Tool
My System SpecsSystem Spec
15 Mar 2013   #9

Microsoft Community Contributor Award Recipient

Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by heavensenttom View Post
Sorry but I'm gonna need it slightly more basic.

I downloaded the last link you gave, extracted the folder X17-58997 to my desktop and burned that whole folder to a blank DVD.

What do I do now?

And I really appreciate you taking the time to help me.
just rightclick the ISO itself (don't extract). "Open with" windows burning
My System SpecsSystem Spec
16 Mar 2013   #10

Windows 7 Home Premium
 
 

Got it sorted, everything blitzed and back to normal. Thanks very much for your help all.
My System SpecsSystem Spec
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 Unable to re-install Windows 7 after Trojan





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