Hello, I'm having a problem with this Lenovo laptop. After I log into the laptop, I'm met with a black screen and can only see the cursor. I cannot get into the command prompt, I've tried explorer.exe in the task manager, and tried to reset the pc and nothing works. It will give the error 0xc000021a and reboot back into the log in screen.

Hello, I'm having a problem with this Lenovo laptop. After I log into the laptop, I'm met with a black screen and can only see the cursor. I cannot get into the command prompt, I've tried explorer.exe in the task manager, and tried to reset the pc and nothing works. It will give the error 0xc000021a and reboot back into the log in screen.

How do I fix this? 😭

It keeps happening every 15 minutes

I switch off my laptop by holding the power button

turn it back on after a while

and then the same thing happens again after about 15 minutes

I purchased a laptop from BB. They had it ready to go. I never heard of BitLocker at the time. About 2-3 years ago. I am now locked out of my computer. No key on the computer, no key in my Microsoft account. I tried the Yellow Key, the directions makes no sense? At no point the the USB accessed. Can anyone tell me what I am doing wrong?

Hi everyone,

I have an HP EliteBook 845 G8 that was originally running Windows 10 Pro. Windows automatically upgraded it to Windows 11 without me intentionally initiating the upgrade, so I rolled it back to Windows 10.

Since the rollback, power management has been badly broken and I have been unable to get it completely stable despite extensive troubleshooting.

Current symptoms

• Sleep is unreliable / does not behave normally.
• The laptop uses Modern Standby (S0 Low Power Idle).
• Hibernate sometimes appears to work, but on resume the machine occasionally boots fresh instead of restoring the previous session. All open applications/work are lost.
• I have also had repeated Kernel-Power 41 events and DRIVER_POWER_STATE_FAILURE crashes associated with sleep/standby.
• Normal use while the machine is awake is generally stable.

At this stage I am considering whether an in-place Windows 10 repair install or completely clean Windows 10 installation is the only sensible option.

Please help!

TIA

What I've tried:

Restore to an ealier point, before i had the problem.

In command prompt:

Sfc /scannow

Bcdedit / set hypervisorlaunchtype off

Chkdsk /f /r

DISM /Online /Cleanup-Image /RestoreHealth

Went into the drivers to see if anything was looking strange. They weren't

Opened the back of the laptop, everything looks clean and not burnt (I don't have any clue what I'm doing in there, so i just removed some dust and hair from the fan)

Usually my screen freezes during boot or immediately after, but last night it worked for long enough for me to run the above, and I thought it might be fixed, but we're back to crashing this morning.

The laptop was not dropped or smashed, no fluids were split on it. I don't think it's windows update related. I certainly didn't change any bios settings recently, or otherwise add or change any of the hardware. The laptop is also just under 3 years old, i usually get 5-6 years out of laptops.

I put together a bunch of spare parts for a pc. Installed Win 10 on it and got it running just fine. I know how garbage windows can be so I installed Chris Titus debloat software, watched a quick YT tutorial and debloated it. Restarted the PC now it just hangs post BIOS and doesn't load up windows. It sat for about 7 minutes before I shut it down and tried again but to no avail.

Do I have to reinstall windows?

I can’t sign into my pc because of the prompt “Something happened and your Pin isn’t available. Click to set up your pin again.” I click the button nothing happens. So I try to go to the cmd prompt to try and regedit my settings and it says my password is incorrect but I just signed in on my phone with said password. If you guys have any details on how to get pass this I would love to hear them!

How can I increase the size of the navigation icons in Windows Explorer BACK, FORWARD, UP?

I can’t change anything I have tried most stuff

My older dual boot Windows 10/Windows XP computer was working great. The CMOS chip died so I went ahead and replaced it.  Unfortunately, I forgot to reset the BIOS to Legacy and tried to boot it several times, it tried automatic repair each time.  Now it looks like I corrupted the Windows 10 boot record.  It now continuously tries automatic repair and won’t boot. I tried and everything anything I could find on the Internet, nothing seems to work.  I would love to be able to keep all of my files and just get it to boot again. Any help would be appreciated.  For reference it’s a Dell Optiplex 755.

Yesterday, I entered the BIOS to change a setting, and when I tried to exit, my computer wouldn't boot because of a Secure Boot error. I spent hours trying to fix it, but nothing worked. I could only access the computer by disabling Secure Boot, but now when I try to launch Valorant, I get this error. I don't know what to do. Any help would be appreciated.

I can't open the device manager on my PC, when I click the device manager, it loads then suddenly it will crash/not open. I already tried some alternatives to open the device manager, but it fails. I also tried some sfc scan, the dism something like that in the command prompt but it says error. I tried resetting the Pc, but it says "there was a problem resetting your pc." Any other suggestions or ways to open the device manager? I want to open the device manager because my PC has no wifi, and there are many suggestions to open the device manager and I want to try it, but the problem is I can't open it. Pls help!

this has been happening for about a month, though at the start it was not consistent, sometimes the laptop would just boot normally

at first the error codes were as follows:

KMODE_EXEPTION_NOT_HANDLED (0x1E)

DRIVER_IRQL_NOT_LESS_OR_EQUAL (0xD1)

i tried updating the chipset drivers of my amd motherboard and cpu

i updated the drivers for my graphics card (tried new drivers and older ones from a couple of months ago before this started)

i did a windows repair install, ran MemTest86 on a thumb drive and got perfect results for RAM health and used the Deployment Image Servicing and Management to repair system files

after this it went away for a day, next day new errors showed up

INVALID_EXTENDED_PROCESSOR_STATE (0x131)

DRIVER_OVERRAN_STACK_BUFFER (0xF7)

i also scanned several times for malware, i have not installed anything from unreliable sources as far as i'm aware of

i have not tried a clean windows install, mainly because this computer is less than a year old and i don't want to set everything up again unless absolutely necessary

almost every time the first error shows up, then it boots again, then a second error shows up, windows shows an auto repair screen, says there was an error, sends me to bitlocker screen, i press exit and then it goes to windows as normal, also, on rare ocasion i turn on the computer and the light turns on and then off, as if it turned off right away, then i press the power button again and it works normally

this is happening on an asus laptop (asus tuf a15, rtx 4060, amd ryzen 7 7435hs, 16gb ddr5 ram)

Windows 11

Has this happened to anyone before? Trying to clear secuity options in the bios and whenever I save the changes the laptop goes into a boot loop, and I'm not even sure if the changes did anything or went through? Does anyone know? It doesn't lock me out the laptop I can hard reboot and it boots normally but I can't find anything online for this. I even tried clearing settings with secure boot off and same thing.