Screen Gets Stuck Flashing During OS Boot - PC Unusable
Sep 14, 2015
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Searching about the issue online, it seems that this can be caused by norton or iCloud software, or two Microsoft background services that you have to disable in MSconfig to stop the screen flashing. I don't have norton or iCloud, and I disabled the two services. Still happening. Can't find anything else online that mentions how to fix this. Also apparently for most people the flashing doesn't start until they've reached the desktop already, whereas for me it starts before I can even do anything. PC completely unusable.
I upgraded to Win 10 on Friday, and since, despite several resetting PC attempts, Win 10 will not load to the login screen. Instead, it is stuck on a loop flashing between the lock screen and a gray loading screen quickly back to the lock screen -- instead of loading to the login screen. This only happens when I attempt to restart or update my PC. If I go to the lock screen because I locked my PC or it fell asleep, I can unlock it. I have also attempted to reset my PC to the previous build, to no avail. I have no restore points.
Today when I started my computer I logged in and after than I get a black screen with my cursor and desk bar flickering and can't do anything. When I press ctrl all delete and go to task manager it says nothing is running. I can't click anywhere or do anything except start up the task manager..
I noted that I am not the first one who encounters a flashing screen after upgrading to Win10, managed to type the "msconfig" and now I am stuck in Safe mode with the system not accepting my password, which is a 4-digit PIN.
This is weird. I rebooted and the windows logo showed up but then it went to a flashing black and white screen. I rebooted a few times and the same thing.
Then I tried F8 while booting (thinking that would get me to safe mode) and it booted fine. BUT, it didn't look like it went to safe mode (not sure if it is obvious in Win10 since I haven't booted to safe mode yet). I rebooted a few more times and all OK.
PC froze and wouldn't ctrl-alt-del, so I turned it off from the power supply, and when I turned it back on, I get a black screen with flashing cursor just after the BIOS splash and just before the Windows symbol would normally appear. I've used a recovery usb - refresh, automatic repair, and system restore do not work, and I can't continue booting with the usb, can't get to safe mode.
I had a spare SSD, so installed 8.1 on it and used it to boot the PC, then attached the drive that wouldn't boot as a secondary drive. All of my files/programs appear to be there on the faulty drive, but for whatever reason the Windows 10 installed on it will not boot.
I'm sure the easiest option would be to wipe the trouble drive and reinstall Windows, but there are several work programs that would be a pain to go back and reinstall (would have to call in the vendor). Since the drive itself seems to be working, could I create a new partition and reinstall Windows to it, then uninstall the corrupted version?
Recently I've started to encounter an error when booting my computer, occasionally it would boot to a weird flashing white and black screen. An example of this can be seen here: [URL]....
This occurs just before the login screen. While this happens, my cursor is still visible, though larger than normal. After a while, the flashing stops and the screen stays black, usually before this I would force restart my PC then it would boot fine.
The most recent update has bricked my PC and I am stuck on the boot up screen, I have tried pressing F8 on boot up but don't get the option to reset it, what to do?
I downloaded and installed the Windows 10 upgrade on Tuesday. Since then my Dell Vostro 3550 laptop will not boot and is stuck on a blank blue screen. I took my laptop to Geek Squad at Best Buy yesterday and he told me Windows 10 is installed but it will not boot. He loaded their MRI operating system with my CD/DVD drive and he told me my files are still on my laptop. They wanted $100.00 to get my files of my laptop into a flash drive. The flash drive cost $30-40. In order for them to fix my laptop, I would have to pay $200.00 for a one year service contract. Then, to solve the problem, they would delete all of my programs, and possibly all my files, from my computer. That totals a minimum cost of $340.00 and that is if they do not find anything else wrong. I told them I could not afford that and I took my laptop home.
When I got home, I tried again to boot my computer and I got this message: WDF_VIOLATION. I ran a pre-boot diagnostic and I got error code 2000-01 42. Msg: Hard Drive 0 - self test unsuccessful. Status = 7. I looked online for information on this error code and found people saying that this means the hard drive has gone bad and needs to be replaced.My laptop was absolutely fine before I downloaded Windows 10 on Tuesday. Now my hard drive is destroyed and my laptop will not boot!
I returned home from work today to find that my computer won't boot. Great, it's going to one of those weeks... After the bios screen and the windows 10 logo, the computer hangs on the following screen, blue background with the spinning white dots. It looks like it's trying to log in, but it gets stuck. The dots never freeze, or at least not in the hour or two I've left it- it just keeps spinning and trying to log in. Before I go further, I'll give you some specs:
Homebuilt Windows 10 desktop, up to date (upgraded from 7 months ago) Gigabyte z87x ud3h mobo Haswell i5-4670k Nvidia 780ti 8gb ram
Ok, where was I. The strange part about this is that everything was working fine yesterday, and I didn't really do anything since then. I upgraded from W 7 to 10 months ago and it's been working fine. There were no windows updates yesterday (Feb 22nd), and I didn't install any other driver or system updates. In fact the only things I did install were the Steam VR test and a game on steam. Nothing else was changed since the last time it booted properly.
Now, onto what I've tried. I'm at a bit of an impasse here because I can't really get the computer to do anything. Booting into bios works, but that's about it. I can't get into safe mode (W10, F8 doesn't work, can't restart into it from desktop, or from login screen).. I've messed around with cables inside the tower, plugged and unplugged hard drives. In the course of restarting many times, I got a "bios corrupt" error, after which it started recovering into the secondary bios (losing all my OC settings and other bios settings). But the problem persisted.
I then tried updating my bios, but I keep getting "invalid file" messages when I try to update from bios/Qflash. Finally, I didn't have a W10 recovery drive, but I downloaded one from Microsoft. Startup repair says it cannot find any issues, and attempting a system restore gives me the error "you must specify which windows installation to restore. Restart, select OS, then select system restore." that doesn't seem useful. Ok, on to command prompt. Trying to enter safe mode from here gives me a "boot config data could not be opened. System device not found."
I upgraded from Windows 8 to 10 without a hitch an hour ago and kept all of my personal files and apps. I set up my start menu and everything was working fine, but I wanted to change the image on the logon screen (or whatever you call the screen in between the lock screen and the screen where you enter your PIN/info). So I took a risk and downloaded the 3rd party app here:
[URL] and uploaded an image and hit apply. Of course right after doing that I went to lock my PC to see if it worked, and as you can tell... it didn't.
I've tried rebooting and it hasn't worked. It's just very rapidly flashing between a blue screen w/ a loading circle and my lock screen image.
A couple of weeks ago my PC started having issues. It started by the screens (2) flashing static when I would wake it up from sleep. I would have to reboot to fix it. Then when I would reach the login screen and enter my password I would be greeted by a black screen with just a mouse cursor. I though it had froze, but it turns out if I wait 15-20 minutes the desktop would eventually load. I tried restoring from a previous point but it didn't work and caused more issues. Suddenly none of my apps nor the store worked.
I tried an image restore and it seems to have fixed my app issue, but I'm still having screen issues and a long boot time. If that wasn't frustrating enough, I tried to install the latest Nvidia drivers today and as soon as I begin installing I get the blue screen, it has to restart and I get this message: PAGE_FAULT_IN_NONPAGED_AREA. I upgraded to Windows 10 when it was first released and have had no issues up to this point. I'm wondering if this issue wasn't all caused when I installed the last set of Nvidia drivers they released on 8/31/15.
I've tried a sfc scannow and it came up with nothing.
My Build: Dell Inspiron 570, Windows 10, AMD Phenom II X2 560 (black edition) CPU, Nvidia GeForce GTX 650 TI GPU, 8BG RAM
I am running windows 8.1 and upgrade to windows 10. Install went fine but after final reboot I'm left with a flashing screen. when I turn off the laptop and reboot I get the login window I login to windows and the screen continues to flash, I cant access the start menu. how do I uninstall windows 10 and start again.?
I installed windows 10 on my machine last week which went fine with no errors. Since then, I have come into work everyday and found the computer idling at the login screen, flashing and not responding. Just a constant flashing until I turn it off. Because of this I've had to reset windows under the troubleshoot option on start up. Safe mode doesn't work, and back up restore doesn't either. I wanted to add that I don't receive an error code or message.
A friend upgraded their computer (HP Compaq 6710q) to Windows 10 recently. It boots up ok, but after about a minute the screen starts flashing periodically. Nothing can be done or executed on the computer.
Problem with the logon screen with windows 10. I upgraded on the morning of Saturday 8th August, without any serious problems. However, later on in the afternoon, I had to do a restart, after a virus/malware scan and removal of infections. The OS was updated at this point, after which a serious problem occurred. Once the OS reached the logon screen, it started flashing on and off between Logon screen and time/date start up picture, with the cursor showing busy. It also reported an error message to do with LogonUI .
I had no way to Logon, or to open task manager, so i had to boot into safe mode, and attempt various problem solving solutions read elsewhere for this issue on the net. None of these worked, so i had to roll back to Windows 7 for the time being. Should i upgrade again, this issue will have to be resolved.
Finally, though, i'm led to believe that LogonUI is malware, and not an important system file, but should it be removed, would this be the cause of the issue?
Flashing screen on new Windows 10 install. I figured out how to return to Windows 8.1. It's restoring on my notebook as I typing this question on my Desktop. I Googled 'flashing screen' and it seems to be a common occurrence.
I tried upgrading last august from windows 7 and encountered the dreaded flashing screen. it was not all that easy to revert to windows 7 with a minimally unresponsive computer but i managed to do it. Question - Has this issue been resolved and will I encounter the same problem again if I try the upgrade again? Windows 7 is working fine on my desktop HP and I really don't want to deal with the hassle again.
My computer has always been fine, until one day i was getting pop ups and redirected randomly, i notice a strange file called "techsmart computer" and was trying to delete it but couldn't so i wanted to go into safe mode and forcibly remove it, i open the start up menu simply check safe mode only and restarted, ever since all i see is the black screen with it loading with nothing else no repair, error message just it loading then it goes to the login screen the blue one and for some strange reason it is flickering as it its turning on/off and its a never ending load! if i press the power button its shutting down and it stops flickering, i searched online for solutions and nothing relevant and of the possible solutions i cant do because i can never get into the login screen, this is not a instillation issue or driver or graphics card, etc... started ever since i checked the safe mode, i want to mention i'm writing this using a different computer, also don't know if its a 32 or 64 bit.
I put window 10 on my dell XPS-420 I sign in it goes to my home page and the screen keep on flashing i can not do anything the arrow that the mouse move there's a blue circle that keeps on going and when it stop the screen stop flashing too it last 10sec then it start to flashing again with the blue circle keep turning like it up date something well it 2 days and the same thing the pc on for 2 days too ...
I was watching some vids on YouTube and then all the suddenly a msg pops up on my taskbar. I was going to see what it has to say but then the screen all the suddenly starts flashing. I clicked once and it went dark. I put it on hibernation then woke it and I was able to move my cursor but the OS didn't respond. It's ok now but I am afraid of viruses and things like that. The message icon was a triangle with an exclamation mark in it. I am currently running Windows 10 64-bit on a Lenovo T410
