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Windows 7: BootMGR missing only when trying to run Windows Defender Offline

30 Apr 2013   #1
ms26260

Windows 7 Ultimate x64
 
 
BootMGR missing only when trying to run Windows Defender Offline

Trying to rid a Dell Latitude D630 running Windows 7 Ultimate 64-bit laptop of malware, trojans etc. I loaded Windows Defender Offline 64-bit on a USB stick, changed the boot order to boot from USB, but receive the error message "BOOTMGR MISSING Press Ctrl+Alt+Del to restart", making it unable to run the Windows Defender Offline. I do not get this error when I boot normally (from HDD), only when trying to run WDO from USB. Laptop is fully functional (albeit slow) when booting from HDD. Also, I do not have any of the install/recovery disks.

Any and all suggestions are welcomed.


My System SpecsSystem Spec
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30 Apr 2013   #2
Dude

Windows 10 Pro X64
 
 

ms26260, welcome to the forums. Sound like you need to make the usb bootable.use this

USB Boot


select try unlisted linux iso from the drop down, choose the ISO you want to boot, then select your drive letter. Then boot from the usb.

Name:  usbinstall.png
Views: 3
Size:  42.8 KB

Your ISO to choose is the one created as shown here

-msss-media.png


My System SpecsSystem Spec
30 Apr 2013   #3
ms26260

Windows 7 Ultimate x64
 
 

Dude - Thanks for the quick response! I am not sure about Step 2. 'Select your *.iso. Is the WDO the .iso?
My System SpecsSystem Spec
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30 Apr 2013   #4
Dude

Windows 10 Pro X64
 
 

Quote   Quote: Originally Posted by ms26260 View Post
Dude - Thanks for the quick response! I am not sure about Step 2. 'Select your *.iso. Is the WDO the .iso?
The file you want is the MSSS_Media.iso It is shown in the second pic.
My System SpecsSystem Spec
30 Apr 2013   #5
ms26260

Windows 7 Ultimate x64
 
 

Thanks again. Will try this after work, will post results.
My System SpecsSystem Spec
30 Apr 2013   #6
alphanumeric
Microsoft MVP

Windows 10 Education 64 bit
 
 

How did you create the Defender USB stick? If done correctly, with the downloaded utility, it should be bootable.
My System SpecsSystem Spec
30 Apr 2013   #7
VistaKing

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

ms26260

I suggest you wait for Cottonball . He will help you remove the viruses . I wouldn't scan the PC with WDO.
My System SpecsSystem Spec
30 Apr 2013   #8
ms26260

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by VistaKing View Post
ms26260

I suggest you wait for Cottonball . He will help you remove the viruses . I wouldn't scan the PC with WDO.

Is WDO not reliable/effective ?
My System SpecsSystem Spec
30 Apr 2013   #9
VistaKing

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

I personally don't find it effective. Do you might stating what virus you had or have ? What antivirus software do you have ?
My System SpecsSystem Spec
30 Apr 2013   #10
ms26260

Windows 7 Ultimate x64
 
 

I do not know what virus it has, the system bogs down and hangs a lot. This is a hand-me-down laptop just given to us, the previous owner was running an outdated version of ESET. Once we get the system cleaned up we will install antivirus software, any suggestions ?

Thanks
My System SpecsSystem Spec
Reply

 BootMGR missing only when trying to run Windows Defender Offline




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