Windows 7 computer (64-bit version 6.1.7600) was acting up, producing random popups ("You've won an iPhone") and redirecting Google search results to various game pages or obviously shady pages. Avira and Malwarebytes found nothing. Spybot S&D was able to find and remove a few trojans and other infections. Windows Defender Offline found Trojan:DOS/Alureon.E but was not able to remove it.
I found a very suspicious very small 3MB partition in Disk Management that was sometimes visible and sometimes active and sometimes not. Trying to delete that or trying to make the Windows partition active produced an I/O error message. (Sometimes even the recovery partition was marked as active!) Despite Googling for a long time, i was able to only find one page mentioning a similar problem (http://social.technet.microsoft.com/Forums/en-GB/w7itprosecurity/thread/4d93ae52-26d6-4082-b398-6a1e4f4d75a8) on the entire Internet, and that only had a typical generic ostrich response from MS.
Spyware Doctor also found Alureon.E, but i don't like their business model of trying to extort money from people in desperate straits instead of providing a fully functional trial version, so i tried Kaspersky AV 2012. KAV was able to remove Alureon.E (subsequent WDO scan was clean), but it killed Windows in the process! The computer screen went black when i allowed KAV to remove Alureon and reboot the computer as recommended, and then the reboot produced the Windows Error Recovery screen.
Running Startup Repair even several times was of no help. System Restore didn't help either.
I used the command prompt to run bootrec /fixmbr, bootrec /fixboot, and bootrec /rebuildbcd as advised on http://www.microsoft.com/security/portal/T...DOS%2FAlureon.E but only the first two were successful. Rebuildbcd produced "total identified windows installations: 0" The following didn't help either:
Bcdedit /export c:\BCD_Backup
attrib bcd –s –h –r
ren c:\boot\bcd bcd.old
All folders and files, including the Windows folder and subfolders, are visible using the dir and cd commands. Can one use the command "bootsect.exe /nt60 all /force" on Windows 7?
Is there a command-line version of gsi.exe or avz.exe? Should i use the Kaspersky Rescue Disk?
I only have a recovery DVD, no installation DVD. What DOS commands are necessary for using the recovery partition to repair Windows?
When i use the repair option on the recovery DVD, it finds Windows 7, but when i click on Next and then System Repair, it doesn't fix anything and even says "Startup Repair could not detect a problem"! This is especially strange because one would assume that this Startup Repair is the exact same one that runs without the CD, and that one results in the opposite "Windows cannot repair this computer automatically".