bcdedit safeboot not working

[Chubbymouse]

I cannot boot into my Windows version due to a virus, I was able to boot into another partitioned copy of Windows and access msconfig, which I then selected the virus ridden partitioned and checked "safeboot minimal" but DID NOT select "make change permanant". However now when I boot up it always boots to the Windows 8 partition with the virus, and doesn't even give me the option of selelcted a different partition (boot manager).
So I stuck in a Windows 7 installation disk and hit, Repair you computer, selected the virus'ed parition and opened up command prompt.
I tried:

bcdedit {default} /deletevalue safeboot

but no avail, and I'm not sure why.

full output of bcdedit is below.
F:/ is the virus ridden im trying to remove safeboot from.

identifier        {bootmgr}
device            partition=C:
inherit           {globasettings}
desc              windows boot manager
bit and pieces irelevant


identifier        {default}
device            partition=F:
path              \Windows\system32\winload.exe
desc              windows 8
inherit           {bootloadersettings}
recoveryenabled   yes
osdevice          partition=F:
systemroot        \Windoiws
safeboot          Minimal
safebootalternatshell    No

so {default} safeboot is registered and bcdedit is found and runs ok.
what would be the command to remove the safeboot value as the above didnt work?

Cheers

[rubberman]

It sounds like this virus has also infected the boot loader. You will need to reinstall a clean MBR to this system drive. You can do that with EasyBCD (a bootable CD/DVD drive). Look here for more details: http://www.linuxbsdos.com/2012/03/10/restore-the-windows-bootloader-to-mbr-after-dual-booting-with-linux/

Once you restore the Windows MBR (Master Boot Record - or boot loader), you should be able to boot into the recovery partition. One word of warning however; I have seen some of these viruses also infect the recovery partition, so it will happily reinfect your system if you run it... :-(

When a client of mine gets this badly munged, then I take the drive out of the system, and scan it with about 3 different professional grade A/V/Malware scanners running on a Security Enhanced enterprise class Linux system and manually clean up the broken parts of the Windows system, restoring broken system files, dlls, etc. from a known-good Windows image. I also backup their user files in case we decide that a clean system re-installation is called for. I suspect that may be the case in your situation.

If that is the case, and we decide to reinstall from scratch, then we first do a complete wipe of the system disc, and reinstall from a Windows DVD. Sometimes we have to order the disc from the system manufacturer, or we install from a commercial DVD and download drivers from the system manufacturer after it is back running. The last thing we do is reinstall their user files from the backup.