[Petya V4sechkin]

Файлы были на месте

Они могут быть повреждены.
Попробуйте заменить (версии должны соответствовать системе и сервис-паку).

В реестре различия были

Удалите разделы:

• HKLM\SYSTEM\CurrentControlSet\Services\MRxSmb
• HKLM\SYSTEM\CurrentControlSet\Services\Mup
• HKLM\SYSTEM\CurrentControlSet\Services\Rdbss

Затем восстановите твиком реестра

Код:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MRxSmb]
"Type"=dword:00000002
"Start"=dword:00000001
"ErrorControl"=dword:00000001
"Tag"=dword:00000005
"ImagePath"=hex(2):53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,44,00,\
  52,00,49,00,56,00,45,00,52,00,53,00,5c,00,6d,00,72,00,78,00,73,00,6d,00,62,\
  00,2e,00,73,00,79,00,73,00,00,00
"DisplayName"="MRXSMB"
"Group"="Network"
"Description"="MRXSMB"
"LastLoadStatus"=dword:00000000

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MRxSmb\Parameters]
"CscEnabled"=dword:00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MRxSmb\Security]
"Security"=hex:01,00,14,80,90,00,00,00,9c,00,00,00,14,00,00,00,30,00,00,00,02,\
  00,1c,00,01,00,00,00,02,80,14,00,ff,01,0f,00,01,01,00,00,00,00,00,01,00,00,\
  00,00,02,00,60,00,04,00,00,00,00,00,14,00,fd,01,02,00,01,01,00,00,00,00,00,\
  05,12,00,00,00,00,00,18,00,ff,01,0f,00,01,02,00,00,00,00,00,05,20,00,00,00,\
  20,02,00,00,00,00,14,00,8d,01,02,00,01,01,00,00,00,00,00,05,0b,00,00,00,00,\
  00,18,00,fd,01,02,00,01,02,00,00,00,00,00,05,20,00,00,00,23,02,00,00,01,01,\
  00,00,00,00,00,05,12,00,00,00,01,01,00,00,00,00,00,05,12,00,00,00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Mup]
"DisplayName"="Служба MUP"
"ErrorControl"=dword:00000001
"Group"="Network"
"Start"=dword:00000000
"Tag"=dword:00000002
"Type"=dword:00000002

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Mup\Parameters]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Rdbss]
"Type"=dword:00000002
"Start"=dword:00000001
"ErrorControl"=dword:00000001
"Tag"=dword:00000004
"ImagePath"=hex(2):53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,44,00,\
  52,00,49,00,56,00,45,00,52,00,53,00,5c,00,72,00,64,00,62,00,73,00,73,00,2e,\
  00,73,00,79,00,73,00,00,00
"DisplayName"="Rdbss"
"Group"="Network"
"Description"="Rdbss"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Rdbss\Security]
"Security"=hex:01,00,14,80,90,00,00,00,9c,00,00,00,14,00,00,00,30,00,00,00,02,\
  00,1c,00,01,00,00,00,02,80,14,00,ff,01,0f,00,01,01,00,00,00,00,00,01,00,00,\
  00,00,02,00,60,00,04,00,00,00,00,00,14,00,fd,01,02,00,01,01,00,00,00,00,00,\
  05,12,00,00,00,00,00,18,00,ff,01,0f,00,01,02,00,00,00,00,00,05,20,00,00,00,\
  20,02,00,00,00,00,14,00,8d,01,02,00,01,01,00,00,00,00,00,05,0b,00,00,00,00,\
  00,18,00,fd,01,02,00,01,02,00,00,00,00,00,05,20,00,00,00,23,02,00,00,01,01,\
  00,00,00,00,00,05,12,00,00,00,01,01,00,00,00,00,00,05,12,00,00,00

и перезагрузитесь.

те же проблемы

Выложите лог Process Monitor при попытке запуска службы "Рабочая станция" (меню File -> Save -> PML-формат) в архиве на любой файлообменник.