Windows 10

Fix: Unable to open Diagnostic options WinRE Windows 10

This post will help you fix an issue with your Windows PC, wherein when you try to open the diagnostic options | recovery console in Windows, you either get an error reading “Unexpected handler” or the recovery options just won’t open. Follow this step-by-step guide, If in case you are unable to open the Windows Recovery Environment (WINRE):

Method 1:

  • Shutdown your PC
  • Disconnect any and all add-on devices like printer, scanner, external keyboard /mouse, projector or monitor, or any network device
  • Restart your PC
  • If you are able to boot into Windows, disconnect any network you are connected to
  • Press Windows logo key + X (To open power menu)
  • press A or click on Command Prompt(Admin)

windowslogokey X

  • Click on Yes
  • In this elevated command prompt, type SFC /SCANNOW
  • Press Enter


  • This will check your system files for integrity
  • If any discrepancies are found, they will be fixed after initial check.
  • After the process completes, restart your machine
  • Check if the problem is solved

Method 2 : Recovery Drive | Bootable Drive (IF you are not able to boot into Windows)

  • If you have created a Recovery drive for Windows, Use that for booting
  • If you haven’t created a recovery drive, follow the steps here to make one
  • Or
  • You can use your Windows installation DVD/USB to boot
  • Once you boot from it, Select your language, keyboard option
  • Click on Next



  • Now, Click on Repair your Computer, in the left bottom corner as shown above
  • Click on Troubleshoot
  • Now Click on Advanced Options
  • Click on Startup Repair

Alternatively: Method 3: Refresh | Reset your PC

This should fix your issue, if not let me know & i will try to troubleshoot your issue further

Windows 8

Fix : Windows 8 showing blank screen at startup / not starting after sudden or improper shutdown

This post will help you troubleshoot / fix a problem with your Windows 8 PC where you are unable to start Windows 8 properly. This problem might occur after a sudden restart. You might also face this issue after a normal shutdown or hibernation. More information on this error can be gathered at : Microsoft KB article

You can use the following methods to resolve this issue:

Method 1 : Windows 8 Recovery Options

  • Boot from the Windows 8 DVD / USB or use the Windows Recovery CD/DVD /USB , if you created one
  • Select Repair if booting from Windows 8 Installation media ( Follow the next step if you are using Recovery Media )
  • Click on Troubleshoot
  • Now Click on Advanced Options
  • Now, you can use System Restore to restore your computer to an earlier time
  • OR
  • You can select Startup Repair

If that does not help :

Method 2 : Microsoft Hotfix

  • A hotfix has been released by Microsoft : You can download the hotfix from here .

Method 3 : General Instructions if you face this issue on a regular basis ( Reinstalling Windows )

  • If you have made up your mind that you will re-install windows. Just follow the instructions below to make sure that you do not face this issue again
  • Boot into your BIOS by pressing DEL , F2 or F10 key ( refer Documentation that came with your computer or onscreen instructions )
  • Go to boot options or locate an options called UEFI boot ( refer screenshot )


  • Either select Both or Legacy Only
  • Save and Exit
  • Reinstall Windows & activate
  • Remember to run Windows Update & update your installation.
Windows 7 Windows Vista Windows XP

What to do, When you can’t start Windows at all !!

After reading this you will understand various system recovery options within Windows 7. Some of them might also apply to other versions of Windows as well.

The System recovery options within Windows 7 include:

  • Last Known Good Configuration
  • Using Safe mode to start Windows
  • Checking if Display Resolution is the problem
  • Knowing the error before troubleshooting
  • Using Start-up Repair
  • Using System Restore
  • Using Backup/Restore
  • Checking Memory errors
  • Finally Re-installing Windows

Last Known Good Configuration

To use this feature, press the F8 key while the system is booting up, Go to the Advanced Boot Options & from the menu select “ Last Known Good Configuration” and press Enter. If your computer system boot fine, you are successfully fixed it.

Using Safe Mode to start Windows

To boot into Safe Mode. Press the F8 key while the system is booting up. This will show you a menu, Select Advanced Boot Options, from the options therein select Safe Mode from the list and press Enter.

This will let you boot into safe mode that will enable Windows to boot only with some basic necessary files and drivers & disables everything that is not necessary for the system to boot. What this does is that it restricts any other program, let it be a Antivirus, display driver module, or any application to run at startup and gives us a fair idea of the problem & also let’s us use system restore to restore the computer to an earlier time when your Windows was running fine. Safe Mode also let’s us uninstall some unwanted programs or drivers that might be make the system unstable.

Checking the Display Resolution

Sometimes some bug or human error sets the Windows Display resolution to value that your monitor cannot handle. In this condition the system fails to boot as the monitor is unable to display that particular resolution transmitted by the Graphic/Display Adapter.

To Fix this, Press the F8 key while the system is booting, Select Advanced Boot Options. From the menu that will be displayed select “ Low-Resolution video mode” or “Enable VGA Mode”.

This will set your resolution to a lower value & will fix any resolution based problems. After booting into windows you can set your resolution to the recommended value* refer documentation of your monitor.

To Change Resolution

(Windows 7/Vista)

Right click on desktop and click on change resolution.

(Windows XP)

Right Click on Desktop-> properties –> adapters


Knowing the Error before troubleshooting

It’s always hard to troubleshoot any problem if you don’t know the case of it. To know the specific error you have to disable “ Automatic Restart on System Failure” .

To do that, Press the F8 key while the system is booting & select Advanced Boot Options. From the menu there select “Disable System Restart on System Failure” , this will enable you to look at the error next time it occurs and the computer will not restart automatically.

If It’s a blue screen Error or better known as BSOD, you can follow our this post to resolve it.

Using Start-up Repair

Startup repair is a tool built into Windows 7 to help users fix the common problems that restricts the user from booting into Windows.

To use Startup Repair:

  • Press the F8 key & select Advanced Boot Options. From the menu displayed there select Repair Your Computer


  • When you select this option, the windows will continue to boot to the repair menu which looks like this:


  • Now click on Startup Repair & follow on-screen Instructions.

If Startup Repair does not solve your issue, you can also choose System Restore from the options shown above & restore your computer to an earlier time when it was working fine.

Click on System Restore, Select a Checkpoint from the calendar ( make sure you choose a date on which your computer was working fine ) & follow the onscreen instructions that appear.

Using Backup Restore ( System Image Recovery )

Refer the Screen Shot above, Follow the steps that led to the above menu to appear & then select System Image Recovery.

Follow the Instruction that appear on screen.

Windows Memory Diagnostics

Ram (Memory) plays an important role in the booting procedure. If your RAM is faulty, the computer system won’t boot properly.

To check for errors in your RAM

Refer the Screen Shot above and select Windows Memory Diagnostic. This will check your RAM for errors. If errors are found you can simply get your RAM module replaced.

Finally, If nothing works out – Re-Install Windows

To Install / Reinstall Windows, Follow this GUIDE