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Got a BSOD after using program

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StylishHokie:
Hello! I've used your program before with no issues, but last night I ran into a problem. I booted Windows Repair into safe mode as recommended then used the optional scan option. Unfortunately, my computer froze as it was scanning so I restarted the computer. I got a blue screen of a death and I'm unable to login into Windows. The stop code error is 0xc000021a. I really don't want to reinstall Windows. If anyone can help, I'd appreciate it.  :sad: I'm using Windows 10 by the way.

Boggin:
You haven't said what you are using to post with but if you have access to another computer, you can use that to create Win 10 install media using either a DVD or USB.

Read the instructions at https://www.microsoft.com/en-gb/software-download/windows10

After you have created the install media, tap F12 as you switch the on the affected machine and use the cursor keys to select the media option.

If using an USB then insert that before tapping F12, otherwise insert the DVD after selecting the DVD drive and press enter.

If using a DVD you will be momentarily prompted to press any key to boot from CD/DVD and when it loads, you may be presented with an inverse window with Windows Setup [EMS Enabled] highlighted - just press enter.

If using an USB, wait for it to load then change/confirm the Time and currency format then on the Install screen click on Repair your computer.

Select Troubleshoot/Advanced options and select Start-up Repair to see what that reports.

You could also try System Restore to see if a restore point will do the job.

If they fail to fix the boot problem then boot up with the install media again and navigate through Troubleshoot to select Command Prompt

Enter bcdedit |find "osdevice"

For clarity that is a Pipe symbol before find and is the uppercase of \

This will give you a partition letter where it sees the volume.

There are three cmds you can try to see if either will repair the corruption to boot normally.

Use your partition letter instead of the x I have exampled -

chkdsk x: /r

You can check the boot status after each of these cmds or just enter one after the other.

dism /image:x:\ /cleanup-image /restorehealth

It may mention something about a Scratch directory, but if the cmd completes then you can ignore that.

The third cmd is the following, again using your partition letter instead of the X I have exampled.

sfc /scannow /offbootdir=X:\ /offwindir=X:\Windows

Note the space before each / in all three cmds.

Let me know how you get on.

StylishHokie:
I had access to another Windows 10 computer and my dad already provided me with the Windows install media usb. I believe I tried the first cmd and it didn't work. This is before I contacted you. I'll give the other commands a try when I get home from work. Thanks!

Boggin:
Okay - I'm off to roost now as it's getting on for midnight here in the UK, but will be back in the morning.

StylishHokie:
I don't think bcdedit did anything. My command line starts out with X:\Sources. I tried all the commands and I'm afraid none of them worked.

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