windows 7 locked down by tr/crypt.xpack.gen

[froglegg1]

running windows 7 home premium sp1

recieved warning from avira of infection.
dont remember the name of the virus named on dialoge box.
clicked "Remove" on dialoge box, but didnt run scan imediately(Stupid move).
after a few minutes my pc froze and restarted.
now unable to start:

internet explorer
firefox
avira
ad aware
windows media player
vlc media player

and probably many more.

also unable to install software.
when i try it says " the windows installer service could not be accessed".

what i have done to date:

attempted to boot in safe mode resulting in blue screen(dont remember message on blue screen).

in boot menu(f8) i selected "load last known good configuration". this failed.

succeeded in booting in safe mode after this, still unable to install or run antivirus. all symtoms remain.

was able to run windows defender(didnt try before) still in safe mode.
the quick scan and full scan reported no infections. symtoms remain.

performed system restore to a point before the infection(i now realize this was probably another bad move) symtoms remain.

looked through event logs and found the the logs from the avira warning dialoge naming TR/Cript.XPACK.gen.

google searched on another machine and found instructions for manual removal. they said to search in start menu for bincd32.dat and delete it.
this file did not appear in the results. they said to find and delete a few regestry keys, none of which are present.

dds will not run.

task manager processes are:

winlogon.exe---------SYSTEM
taskmgr.exe----------ME
taskhost.exe---------ME
RavCpl64.exe--------ME
Nvxdsync.exe--------SYSTEM
Nvtray.exe-----------ME
Ipoint.exe------------ME
igfixtray.exe---------ME
igfixpers.exe--------ME
hkcmd.exe-----------ME
explorer.exe---------ME
dwm.exe-------------ME
csrss.exe------------SYSTEM

also these are blinking ocasionaly for a second and disapearing:

svchost.exe*32
werfault.exe*32

I now realize many of my decisions where probably not the best. i appologize if ive made this harder for us.

[shelf life]

hi froglegg1,

Your post is a few days old. If you still need help simply reply back.

[froglegg1]

Thank you for your reply.

Unfortunately, I needed my computer badly
and chose to format and reinstall last night.

A day late and a dollar short as they say.

I did manage to connect a usb hdd and back up my files, so
I suffered no data loss.

Again, thank you for your reply and the service you provide.

[shelf life]

hi froglegg1

Sometimes a reformat can be the quickest and safest thing to do. Dont forget to update Windows, install a AV and a antimalware or two. Thanks for letting me know. Happy safe surfing out "there."