Windows 10: sacdrv.sys

RecoveryYour PC/Device needs to be repaired The operating system couldn't be loaded because a critical system driver is missing or contains errors.File:\\Windows\System32\drivers\sacdrv.sysError code: 0xc0000221You'll need to use recovery tools.If you don't have any installation media like a disc or USB device, contact your PC administrator or PC/Device manufacturer.What do i do?Finding any microsoft contacts is has been a quest by itself. Every time i try to enter safe mode i get a blue screen. I read online about something about command prompt, the thing is i can't get to it because everyt

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DRIVER_IRQL_NOT_LESS_OR_EQUAL (igdkmd64.sys)

Hi Nezar,

Thank you for posting on Microsoft Communities.

I will be glad to help you with the issue you have with the computer. I understand the frustration when things don't work the way it should.

What is the make and model of your computer?

File igdkmd64.sys is the Intel Graphics Kernel Mode Driver for Microsoft Windows 8.

I would suggest you to follow the steps provided below:



Step 1:

Uninstall the Device from Device Manager

• Open Device Manager
• Expand the Display Adapter section.
  
• Find the Display card Driver.
• Right click Display card Driver and select
  Uninstall.
• Select the check box delete the driver software for this device.
• Reboot the computer after uninstall process has finished.

Step 2:

Uninstall the Device Drivers from Program List in Control Panel

• Click on start, select Control Panel
• Now click on Programs and select Programs and Features.
• Find the Display card Driver.
• Right click Display card Driver and select
  Uninstall.
• Reboot the computer after the uninstall process has finished.

Hope this helps and do let us know if you need any assistance.

 

Blue Screen because of cm11264.sys

Hi,

Cm11264.sys
is a vital SYS file and it's a component of the software C-Media USB Audio Driver (WDM) developed by Windows Software Developer. Without it, it will be very difficult for your Windows system to run. Usually, cm11264.sys blue screen
errors occur when you install a new hardware or software.

For us to provide you the possible resolution and the accurate information as to why you're having the issue, answer
the following questions:

• When did the issue start?
• Where there any changes made on your computer prior to this concern?
• To make sure that we have not missed on anything, what troubleshooting steps have you done so far?

Looking forward to the requested information for us to assist you further.

 

What is semav6msr64.sys & Mellanox Drivers?


I noticed semav6msr64.sys on my system earlier today (also via Autoruns), and eventually tracked down the program which installed it - you heard it here first! It's an Intel file, and just coincidence that SEMA Software authored a driver file with the same name.

On my system the driver was installed by the Intel Driver Update Utility Installer, which I'd installed to update my Intel drivers. Uninstalling this program after use doesn't uninstall semav6msr64.sys, presumably due either to a bug in the uninstaller or to laziness of the development team who wrote it. I don't like leaving software package remnants on my system for no good reason, so removed it as follows:

1. Create a System Restore Point in case the following steps cause any problems.
2. Uninstall Intel Driver Update Utility Installer, if it appears in the installed programs list in Control Panel.
3. Rename semav6msr64.sys to semav6msr64.sys.bk [to be deleted sometime later if no problems are encountered].
4. If, and only if, you're comfortable editing the registry, delete the following keys (otherwise just leave them, they'll have negligible effect):

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_SEMAV6MSR64
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\semav6msr64