Restarting a computer fixes many problems.
If the error continues to occur, do some further digging to determine the underlying cause.
Disconnect all external devices.
Remove peripherals such asexternal hard drives,flash drives, and otherUSBdevices, then restart the computer.
These extraneous devices can interfere with the boot process at times.
Remove them one-at-a-time to figure out which rig is at fault.
Scan Windows for errors.
The Windows Error Checker tool can also be run from thecommand promptusing thechkdsk command.
Boot into safe mode.
When Windows doesn’t boot normally, it’s possible for you to often access theoperating systemin safe mode.
If that works, you might perform many of the troubleshooting steps below from within Windows.
Perform a Windows Startup Repair.
Scan the PC for malware.
If a virus prevents Windows from booting, use abootable antivirus tool.
Download an antivirus program for Windows on another machine and copy it to a bootable drive.
Most virus tools include a bootable rescue tool that scans a system from a command prompt.
Test the hard drives.
The easiest way to do this is to use a free hard drive testing tool.
If you have access to the command prompt, execute the tool from there without removing the hard drive.
Another option is toreplace the hard drivewith another drive you know works.
You might also try the hard drive in another machine.
Change the boot order.
It can also occur when youupdate the system BIOS.
Update the volume boot code to use BOOTMGR.
Thevolume boot codecan become corrupted or associated with a boot loader other than the Windows defaultBOOTMGR.
Updating the volume boot code should fix this problem.
Volume boot code problems can also cause additional problems, includingHall.dll related errors.
Repair the Master Boot Record (MBR).
Similar to the volume boot code, theMaster Boot Recordcontains data necessary for loading Windows.
Disable Windows Secure Boot.
The Secure Boot feature can prevent external hardware or software from working with a computer.
Temporarily disable it to see if that fixes the problem.
Perform a system restore.
Perform a clean install of Windows.
Reinstalling Windows overwrites all changes made to the system.
As a result, system files that were corrupted or missing are restored to proper working order.
Check for component failures.
If possible, look inside the computer for anything that may be loose or disconnected.
Do the same for any external devices that caused the error.
Before you open up a computer or other hardware, check to see if the machine has a warranty.
You may be able to get it professionally serviced for free.
Boot into safe mode and pressWindows key+R; in theRundialog box, typeeventvwr.
In theWindows Logsmenu, selectSystem.
Find a log labeledsystem_thread_exception_not_handledand.
select it to find the faulty driver.
This error indicates you may not have permission to get into the unit, path, or filename.
To fix it, right-poke the file or folder and selectProperties>Security.
UnderGroup or user names, selectEditand ensure you have administrative permissions.
