Windows error 0xC000021A, -1073741286

Windows 8 Desktop won't start up

My Windows 8 PC won't start up. When I power it on, I see the Acer splash screen, but then I get an error screen with a code 0xc000021a and then it reboots and tries to repair disk files, but fails then gives me the option to refresh/reset/more advanced options. [...] read more

Windows 8 Pro clean install - everything slow; hard drive at constantly at 100%

Yesterday, I have downloaded and installed Windows 8 Professional, after downloading it (legally) and burning it to a DVD, on my 3-year-old Dell Studio 1555 (Intel Core Duo 2x2.4 GHz, 4 GB RAM, Toshiba MK2555GSX hard disk drive). The installation failed two or three times, each time differently (error codes, [...] read more

Computer making ticking sounds, windows 8.1 crashing, continuous buzzer sounds

I have a problem that I can't get rid off. This morning I've turned on computer, didn't pay attention if the splash screen of motherboard is on the screen. Computer started to have a black screen and produce a series of 'tick' sounds (just like when you hit the 'restart' [...] read more

Windows Phone 8 Emulator in VMWare Fusion on OSX

I am attempting to launch the windows phone 8 SDK emulator on my Mac so that i can do simple web testing of mobile websites i build. I have followed several guides and they all say the same thing. Such as: 6. Once the content (list of files and folders) [...] read more

What to do if Windows keeps getting corrupted?

For the second time now, my PC has just randomly not been able to boot and got stuck in an automatic repair loop. The error code I get when trying to boot is 0xc000021a. I've tried everything and it seems the only solution is to reinstall Windows in order to [...] read more

Boot Camp running Windows 10 returns error code 0xc000021a

My MacBook Pro (Retina, 15-inch, Mid 2014) running macOS Mojave version 10.14.6 failed to boot in Windows 10 via Boot Camp. I was prompted with Windows auto repair system saying it would search for errors. It returns the error code 0xc000021a and claims it wants to reboot. Upon restarting, it [...] read more

Modified system reserved partition but now no boot device found error(code:0xc000021a) on dual boot system(Windows 10 & Ubuntu LTS 18.04)

I actually tried to modify the system reserved partition size so that the recent windows update can be installed without error on my hp 15ac122tu machine which is i3 5th gen. I tried to modify the size using mini partition tool by creating 500mb unallocated space and expanding the system [...] read more

Windows Installed But No Boot

My PC suddenly stopped booting even though I didn't install or change anything. The error was ending with "D:\windows\system32\logfiles\Srt\SrtTrail.txt". When I turned on the computer, it was just giving the blue screen with "0xc000021a" error code, getting restared and trying to fix it but then the final error: "Automatic Repair [...] read more

How to bypass NTFS file permissions?

Recently I had permissions problems with Windows Search, then I run Permissions Time Machine to restore the permissions to default (according this topic) After this, I receive a blue screen on startup, with the 0xC000021A code. In Advanced Startup Options, I receive an "access denied" for all files that I [...] read more

Windows 10 cannot boot, 0xc000021a error

2 days ago I turned on my laptop. It tried to load when the Window logo comes up, then an error occurred: code 0xc000021a. The laptop keeps restarting and won't show the box to get into repair mode. I tried turning the computer off and restarting, still it can't get [...] read more

Windows 10 boot loop and error 0xC000021A

Toshiba P50 laptop, 16G RAM, 1Tb disk, Windows 10 home A couple of weeks ago my laptop reported this error at boot: Your PC ran into a problem and needs to restart and error 0xC000021A. I could get it to start by disabling driver signature enforcement, but this wasn't reliable/consistent. [...] read more

Windows 10 Update broke my Windows 8 Install

I have two SSDs one with Windows 10 and one with windows 8.1. I booted into the windows 10 install(press Del to invoke BIOS and then selected windows 10 to boot) I told it to start updates and walked away as it takes awhile. When I got back it was [...] read more

Preventing Windows from turning off drives on BSOD

Certain BSODs (e.g., 0xc000021a) will say that the system has been shut down to prevent further problems. Obviously this is not actually the case since the message can be viewed on screen, however, the hard-drives are shut down. This is quite annoying because it adds unnecessary wear and tear to [...] read more

My PC's Windows 8 partition got destroyed. How can I fix it?

I had a nice setup with my desktop PC running Windows 8. It had been running fine since the first or second of this month - when I installed it. But after attaching my laptop's HDD with a SATA cable and unplugging it again, I got a message to restart [...] read more

Windows Server 2012 BSOD after VSS Shadow Copies

After the recent installation of the following KB's: KB4103730, KB4096416, KB4095872, the server would BSOD once a shadow copy starts. A sfc /scannow finds issues but also states there were some components that cannot be repaired and to check the logs. Minidump file shows Bug Check Code: 0xc000021a. Once the [...] read more

Multiboot a cloned drive with windows

I have cloned a windows installed drive from an old hard disk to an empty space(f:) of a new hard disk, the new hard disk already has a windows bootable c: drive. The new hard disk now has, 1. a bootable c: drive, 2. a non bootable windows in f: [...] read more

Windows 10 BSOD after using Update Troubleshooter

After the nth failed update to my Windows 10 Professional installation - forcing me to restart my laptop twice for the attempt to install and the rollback - I got fed up with it, and decided to look into a complete reset of the updates. After all, I have hidden [...] read more

PC doesn't POST (no beep code at all) but lights and fans on - If I remove RAM I do get "no RAM" beep code

The title explains a lot but I'll try and explain more what has been happening here. I turned on my PC yesterdays normal and it went straight to windows 10 bluescreen with stop code 0xC000021A (STATUS_SYSTEM_PROCESS_TERMINATED). I let it get to 100% and restart and it went straight back into [...] read more

Windows 10 USB keyboard and USB mouse became totally dead

Out of the blue my mouse and usb keyboard stopped working completely (without any reboots). Feels like PC is dead, keyboard doesn't respond to num-lock or caps-lock, lights do not change at all. I tried to reboot: no way to fix, mouse and keyboard are listed in device manager as [...] read more

Fix error 0xc000021a Windows 10

Hopefully this is the right place to be asking this question, I'm desperate so any help is appreciated anyway. My work computer is currently stuck in a blue screen reboot loop displaying error 0xc000021a. So far everything I have tried hasn't fixed it. I believe this has happened by an [...] read more

How to fix 0xc000021a when Windows boots only by disabling driver signature enforcement?

Initially I used regback registry to fix USBPCap USB not working problem . After sometime It gave 0xc000021a BSOD . So i used Windows 10 iso to repair and messed it up with bootrec and bcdedit commands. Tried SFC and dism but no results. I am able to boot PC [...] read more

Getting back Windows 10 recovery which has windows 7 recovery

Initially I used regback registry to fix USBPCap USB not working problem . After sometime It gave 0xc000021a BSOD . So i used Windows 10 iso to repair and messed it up with bootrec and bcdedit commands. Now Windows 10 iso opens Windows 7 recovery options. Tried SFC and dism. [...] read more

Windows 10 boot fails error '0xc000021a'

Okay, so I did something stupid yesterday. I was not able to delete some stupid files from C:/ so decided to take ownership of the drive. Midway through the process, I got numerous errors which I simply skipped. My desktop and recycle bin corrupted and the stock apps deleted itself. [...] read more

Dell Inspiron 3650 Desktop Windows 10 Windows Defender constantly rebooting

Malwarebytes Antivirus was added to the computer and it detected a problem. I rebooted using the Windows button rather than thru Malwarebytes. Windows rebooted to Windows Defender which runs, gives an error Stopcode 0xc000021a and then reboots and repeats the cycle over and over. I used Dell Windows 10 disk [...] read more

How do I fix windows error 0xc000021a

My PC displays the error 0xc000021a when booting then restarts to recovery mode. I could not find any of my restore points so I booted into safe mode and disable signature drivers but it still displayed the error. I also got easy recovery essentials but it says my hard drive [...] read more

Windows 10 VM suddenly BSODs

I have a Windows 10 Hyper-V VM running on a Windows 10 host. * Until yesterday, everything worked fine. * Since yesterday, the guest VM bluescreens with an error code 0xc000021a immediately after starting. * Resetting the VM to an earlier snapshot (taken months ago) won't fix the issue - [...] read more

Error 0xc000021a when booting Windows 7, cannot install Windows 10

The situation is as follows: A Windows 7 machine whose PSU was replaced not too long ago has started failing to boot, with startup repair, sfc and dism and anything similar doing nothing. However, manually launching the PC with "Disable driver signature enforcement" allows machine to boot normally. Since the [...] read more

BSOD after update windows 10 on Acer Switch 10 E SW3-013-N12P/W

After I update the newest release (today) is 'Cumulative Update for Windows 10 for x64-based Systems (KB3081424)' my tablet become crazy. First it got BSOD with the error code 0xC000021A then it automatically reset the system. Repeat many times, sometimes it's allow me to access to windows but can't do [...] read more

0xc000021a Windows Error

I installed Windows 8.1 from Windows 7 a few weeks ago, and have since had to reinstall THREE times because of this same error. Basically, after a few days of normal use, I start getting "Shockwave Flash Player has stopped working" in google chrome, firefox, windows apps, etc. So, I [...] read more

BSOD after installing old driver in Windows 8.1

I have installed an older version of BlindWrite (I know it was a stupid thing to do) on my Windows 8.1 laptop. During the reading of a DVD, a BSOD showed, saying DRIVER_IRQL_NOT_LESS_OR_EQUAL. When trying to boot up, it shows a BSOD again with error 0xc000021a. Further problems I have: [...] read more

acer aspire starts very slow, takes about 30 minutes to show password box

the bios gets opened with F2 and also the process with the F9 and F10 but again the same problem restarts. once it showed the UUID error. also nest time it showed that there are errors so it tried itself to find out and finaly showed 0xc000021a error. next time [...] read more

Windows Server 2012 caught in reboot loop with error 0xc000021A

After installing a few recent updates[1], a Windows 20012 R2 server demanded a reboot. Instead of coming back normally it got caught in a reboot loop with error 0xc000021a. The following was attempted but with no success: * repair mode * last known good * safe mode Most finds on [...] read more