BSOD at random times, error 0x1000007f

[cfabros]

Hello, I am a novice when it comes to computers, but know enough to be dangerous. With that said, for the past several weeks I have been getting BSOD's when using my laptop and they seem associated with the win32k.sys driver. Attached are the DMP files of the two most recent crashes.

==================================================
Dump File : 091515-28719-01.dmp
Crash Time : 9/15/2015 1:41:44 PM
Bug Check String : UNEXPECTED_KERNEL_MODE_TRAP
Bug Check Code : 0x1000007f
Parameter 1 : 0x00000008
Parameter 2 : 0x8e139750
Parameter 3 : 0x00000000
Parameter 4 : 0x00000000
Caused By Driver : win32k.sys
Caused By Address : win32k.sys+d1b5e
File Description : Multi-User Win32 Driver
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7600.16385 (win7_rtm.090713-1255)
Processor : 32-bit
Crash Address : win32k.sys+d1b5e
Stack Address 1 : win32k.sys+981a9
Stack Address 2 : win32k.sys+9515f
Stack Address 3 : win32k.sys+85e36
Computer Name :
Full Path : C:\windows\Minidump\091515-28719-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7601
Dump File Size : 131,072
Dump File Time : 9/15/2015 1:42:57 PM
==================================================

==================================================
Dump File : 091615-39187-01.dmp
Crash Time : 9/16/2015 11:53:26 AM
Bug Check String : UNEXPECTED_KERNEL_MODE_TRAP
Bug Check Code : 0x1000007f
Parameter 1 : 0x00000008
Parameter 2 : 0x807c9750
Parameter 3 : 0x00000000
Parameter 4 : 0x00000000
Caused By Driver : win32k.sys
Caused By Address : win32k.sys+d1b5e
File Description : Multi-User Win32 Driver
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7600.16385 (win7_rtm.090713-1255)
Processor : 32-bit
Crash Address : win32k.sys+d1b5e
Stack Address 1 : win32k.sys+981a9
Stack Address 2 : win32k.sys+9515f
Stack Address 3 : win32k.sys+85e36
Computer Name :
Full Path : C:\windows\Minidump\091615-39187-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7601
Dump File Size : 131,072
Dump File Time : 9/16/2015 11:54:54 AM
==================================================

Any recommendations would be greatly appreciated.

Here is my system information:

OS Name Microsoft Windows 7 Professional
Version 6.1.7601 Service Pack 1 Build 7601
OS Manufacturer Microsoft Corporation
System Manufacturer Hewlett-Packard
System Model HP ProBook 4520s
System Type X86-based PC
Processor Intel(R) Core(TM) i3 CPU M 370 @ 2.40GHz, 2399 Mhz, 2 Core(s), 4 Logical Processor(s)
BIOS Version/Date Hewlett-Packard 68AZZ Ver. F.20, 9/8/2011
SMBIOS Version 2.6
Windows Directory C:\windows
System Directory C:\windows\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "6.1.7601.17514"
Time Zone Pacific Daylight Time
Installed Physical Memory (RAM) 8.00 GB
Total Physical Memory 2.92 GB
Available Physical Memory 883 MB
Total Virtual Memory 5.84 GB
Available Virtual Memory 2.52 GB

Again, thanks for your help.

Milo
Carlsbad, CA

 

[Laith]

Hiya and welcome to SevenForums!rb:

BugCheck 1000007F, {8, 807c9750, 0, 0}

Probably caused by : win32k.sys ( win32k+d1b5e

Run sfc /scannow and chkdsk /r.
Install the latest updates from Windows Update.

Do the exact same steps for chkdsk /r but instead of typing in sfc /scannow type chkdsk /r.