aswrvrt.sys , system dont boot

hi
i have the same situation of this case:
https://forum.avast.com/index.php?topic=147732.0

here the scan result :

Scan result of Farbar Recovery Scan Tool (FRST.txt) (x64) Version: 12-09-2014
Ran by SYSTEM on MININT-HPAIJSD on 21-09-2014 13:36:19
Running from H:\mik
Platform: WIN_7 (X64) OS Language: English (United States)
Boot Mode: Recovery
Attention: Could not load system hive.
Attention: System hive is missing.

Tutorial for Farbar Recovery Scan Tool: http://www.geekstogo.com/forum/topic/335081-frst-tutorial-how-to-use-farbar-recovery-scan-tool/

==================== Registry (Whitelisted) ==================

(If an entry is included in the fixlist, the registry item will be restored to default or removed. The file will not be moved.)

ATTENTION: Software hive is missing.

==================== Services (Whitelisted) =================

(If an entry is included in the fixlist, the service will be removed from the registry. The file will not be moved unless listed separately.)

==================== Drivers (Whitelisted) ====================

(If an entry is included in the fixlist, the service will be removed from the registry. The file will not be moved unless listed separately.)

==================== NetSvcs (Whitelisted) ===================

(If an item is included in the fixlist, it will be removed from the registry. Any associated file could be listed separately to be moved.)

==================== One Month Created Files and Folders ========

(If an entry is included in the fixlist, the file\folder will be moved.)

==================== One Month Modified Files and Folders =======

(If an entry is included in the fixlist, the file\folder will be moved.)

==================== Known DLLs (Whitelisted) ================

==================== Bamital & volsnap Check =================

(There is no automatic fix for files that do not pass verification.)

C:\Windows\System32\winlogon.exe IS MISSING <==== ATTENTION!.
C:\Windows\System32\wininit.exe IS MISSING <==== ATTENTION!.
C:\Windows\SysWOW64\wininit.exe IS MISSING <==== ATTENTION!.
C:\Windows\explorer.exe IS MISSING <==== ATTENTION!.
C:\Windows\SysWOW64\explorer.exe IS MISSING <==== ATTENTION!.
C:\Windows\System32\svchost.exe IS MISSING <==== ATTENTION!.
C:\Windows\SysWOW64\svchost.exe IS MISSING <==== ATTENTION!.
C:\Windows\System32\services.exe IS MISSING <==== ATTENTION!.
C:\Windows\System32\User32.dll IS MISSING <==== ATTENTION!.
C:\Windows\SysWOW64\User32.dll IS MISSING <==== ATTENTION!.
C:\Windows\System32\userinit.exe IS MISSING <==== ATTENTION!.
C:\Windows\SysWOW64\userinit.exe IS MISSING <==== ATTENTION!.
C:\Windows\System32\rpcss.dll IS MISSING <==== ATTENTION!.
C:\Windows\System32\Drivers\volsnap.sys IS MISSING <==== ATTENTION!.
C:\Windows\system32\codeintegrity\Bootcat.cache IS MISSING <==== ATTENTION!.
C:\Windows\System32\winsrv.dll IS MISSING <==== ATTENTION!.

==================== Restore Points =========================

==================== Memory info ===========================

Percentage of memory in use: 8%
Total physical RAM: 8046.1 MB
Available physical RAM: 7387.38 MB
Total Pagefile: 8044.25 MB
Available Pagefile: 7373.8 MB
Total Virtual: 8192 MB
Available Virtual: 8191.9 MB

==================== Drives ================================

Drive e: (Recovery) (Fixed) (Total:13.2 GB) (Free:0.75 GB) NTFS ==>[System with boot components (obtained from reading drive)]
Drive g: (Repair disc Windows 7 64-bit) (Removable) (Total:0.97 GB) (Free:0.78 GB) NTFS
Drive h: (USB DISK) (Removable) (Total:3.73 GB) (Free:0.61 GB) FAT32
Drive x: (Boot) (Fixed) (Total:0.03 GB) (Free:0.03 GB) NTFS
Drive y: (System Reserved) (Fixed) (Total:0.1 GB) (Free:0.07 GB) NTFS ==>[System with boot components (obtained from reading drive)]

==================== MBR & Partition Table ==================

========================================================
Disk: 0 (MBR Code: Windows 7 or 8) (Size: 465.8 GB) (Disk ID: DC153B7C)
Partition 1: (Not Active) - (Size=13.2 GB) - (Type=27)
Partition 2: (Active) - (Size=100 MB) - (Type=07 NTFS)
Partition 3: (Not Active) - (Size=452.5 GB) - (Type=07 NTFS)

========================================================
Disk: 1 (Size: 995.1 MB) (Disk ID: 0021CD6C)
Partition 1: (Active) - (Size=994 MB) - (Type=07 NTFS)

========================================================
Disk: 2 (MBR Code: Windows XP) (Size: 3.7 GB) (Disk ID: C3072E18)
Partition 1: (Not Active) - (Size=3.7 GB) - (Type=0C)

==================== End Of Log ============================

i tryed to chkdsk D: /r but it stops at 15% ( i let him 1 night but it 's still at 15%)

my os is in D:

ty

The fact that chkdsk stops would indicate a hard drive problem. Do you have a backup image

no i havent :frowning: (a backup image of the os? ) …i have restarted the chkdsk and now is at 19% and slowly runnin … it’s scanning all the disk and of many files says “windows replaced bad clusters in file xxxxxx”

is it really scannin a 450 gb disk trough a us 2 xD?

also do you know which one is the cause of this? avast?

Nope it is the hard drive getting a lot of errors. They could be because the hard drive is failing, a power surge or an improper shutdown