I've got a system running Windows XP Home that was infected with some kind of virus / malware which I removed by taking the hard drive out and attaching it by usb adapter to another computer running the latest Eset Smart Secuirty 7.0.x and scanning with an indepth scan and letting it clean / delete all infected files. I also ran a number of other utilities such as TDSKiller and ComboFix. After that I tried to run Malwarebytes and I keep getting the message System Error 8007007F Automation Error. I've googled on this problem and found a number of threads regarding it and I've tried all the suggested fixes: Used regsvr32 to reregister mbamext.dll, ssubtmr6.dll, vbalsgrid6.ocx Installed subinacl and ran the Microsoft registry permissions reset script: cd /d "%ProgramFiles%\Windows Resource Kits\Tools" subinacl /subkeyreg HKEY_LOCAL_MACHINE /grant=administrators=f /grant=system=f subinacl /subkeyreg HKEY_CURRENT_USER /grant=administrators=f /grant=system=f subinacl /subkeyreg HKEY_CLASSES_ROOT /grant=administrators=f /grant=system=f subinacl /subdirectories %SystemDrive% /grant=administrators=f /grant=system=f subinacl /subdirectories %windir%\*.* /grant=administrators=f /grant=system=f C:\Windows\system32\secedit /configure /cfg %windir%\repair\secsetup.inf /db secsetup.sdb /verbose Performed a repair install of the operating system. Reinstalled Malwarebytes and I still have the exact same problem, is there any addition information on how to repair this problem that I haven't tried? - Norm