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.
View 3 RepliesI've seen lots of people posting about this all over the internet but as of yet not found a clear fix to my problem. I registered for the upgrade a while ago and the 'check' said that my system was fine. It's a HP TouchSmart 520 and is 2 to 3 years old.Today I got the message saying that I could do the upgrade and all seemed to go well, no errors throughout the installation. However, as soon as one of the users logs on the desktop just flashes and you can't access anything other than ctrl-alt-del and the task manager.
I've tried booting into safe mode and trying a windows update (boots in safe mode with no flashing) but it finds nothing, and I've looked on the HP website to see if there is a W10 driver. It gives you a file to download which should check for drivers but that doesn't run in safe mode so a non-starter. And if I use the HP website it basically says that you need to use the windows update; which just sits there doing nothing.
If I go into device manager and try to do an update it says that the graphics driver is up to date. I am a bit hacked off that the HP website suggests that it's a product that's not been tested with W10, but the Microsoft check said all ok.
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.
View 9 RepliesFlashing 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.
View 2 Replies I have downloaded and successful installed Windows 10 on one of my two computers. When I downloaded to second computer it hung on the installation re-boot. Now machine will only display BIOS splash screen and then shows a black screen with a single fast flashing cursor.
I tried putting the original Windows 7 install disk in the DVD but could not boot that way either. I can not get in contact with Windows support in Australia and have not been able to find an email address.
What does it mean when you see a black screen that has a grey flashing dash located at the top left-hand corner of the screen? It moves down a bit before finally moving onto the Windows 10 logo, where it sometimes gets stuck and reboots (and the grey dash screen appears again before moving on).
I noticed this issue both during upgrade (when it failed and tried to recover the installation) and after installation. This issue occurred on an Acer Aspire Z5801. It does not occur on Windows 7.
I have a Lenovo Thinkpad Edge with an Intel I5 processor, 64 bit with no hardware upgrades (stock). I had accidentally stepped on the screen (fell off my lap and then crunch) which was mangled beyond repair, so I have been using it similar to a tower, with a VGA and/or HDMI connected monitor (my HDMI cable went bad, I picked up a new cable but hadn't hooked it up to the second monitor. I started my free upgrade from Windows 7 Home Premium to 10 last night. I woke up to the black screen/mouse pointer issue which is what brought me to this thread. I tried the recommended fix:
1. Hit ctrl, type in password and enter
2. Win Key + P + Down Arrow. (Win Key + P only seems to do the same thing)
This brought up options to
1. Disconnect projector (Tried this and lost connection to the VGA even after reboot)
2. Duplicate (Screen is still black with mouse cursor, but I saw a little bit of red and blue pixels at the bottom where the task bar should be until I disconnected and re-connected the VGA, then it was back to black screen and cursor)
3. Extend (still black screen and cursor)
4. Connect Projector (still black screen and cursor)
I'm not sure what to do. I must have some OS installed, because I am able to also perform these operations from my USB Keyboard/Mouse. I'm just not sure how to get Windows back on my VGA connection (I haven't tried HDMI because I did not have it connected when I ran the update.) I thought Duplicate displays would do the trick, but apparently not. For as beat up as the laptop is on the outside, the hardware performs fine. I also have a 2nd laptop (work laptop, also a Lenovo W541) that I can use if any solution involves downloading something bootable.
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.
View 1 RepliesI just updated to Windows 10 from Windows 7, and now my computer starts flashing out of no where. The taskbar and the desktop starts flashing. When this happens I can not do anything. When it stops, I can not use the start button.
View 3 RepliesI 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.
I cannot explain exactly the problem so i made a video.. here : [URL] .... I tried disabling the 2 services from msconfig..but no luck..
View 3 RepliesI 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.?
View 3 RepliesUpgraded window 10 from Window 7,now all the screen does is flash can't go online to change back to window 7...
View 1 RepliesI upgraded from Windows 7 to Windows 10 at the first opportunity on July 30 after registering with Microsoft. The upgrade appeared to progress smoothly and I was able to boot the computer to see the new desktop screen. However, very soon after this first boot, the computer asked me to restart to finish the upgrade. This I did and my computer has since been rendered unusable. Every time I boot, the computer gets stuck on the welcome screen. It displays the generic circular user icon, with my name written underneath and the word "Welcome" written underneath this. The animated "computer working" icon (the little dots which rotate again and again) is displayed next to this. However, it never goes away. I left the computer for 12 hours and nothing changed (the little dots kept on rotating all the while). The computer otherwise appears fine (ie. the multimedia buttons at the top of the keyboard work fine) but the OS cannot get past this screen, no matter what I do.
I have unplugged all USB devices. I have tried booting with the power cable in and out. I have gone into the Advanced tab of the setup menu and disabled (and re-enabled) things like Bluetooth and Wi-Fi top test if this makes a difference. Nothing does. As things currently stand, I am completely unable to use my computer and all my files are stranded. Several of them are desperately needed.
I have tried pressing F8 to boot the computer in safe mode, but this doesn't seem to work (it results in a back lit but otherwise black screen).
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.
View 4 RepliesAfter starting install of windows 10 screen is now flashing, can not do anything!
View 2 RepliesI had windows 7 n downloaded 10, everything went good until I logged in n the screen started flashing can't click on anything..
View 1 RepliesProblem 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?
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..
View 1 RepliesI 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.
View 2 RepliesBasically a staticy flashing white screen spams on my first startup if i power down pc it works fine the 2nd time.
View 1 RepliesMy 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.
View 1 RepliesI 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 ...
View 4 RepliesI just upgraded to Win 10 on my Acer Aspire One netbook, but cannot get the bottom of the display to be visible. The start button/task bar is off screen, and I cannot find a way to fix it.
The native display of the netbook is 1024X600, and display was set at 1024X768 in Win 7, and worked fine. Now, even if I set the display resolution back to 1024X600, the icons just get bigger, and the bottom ones are mostly off screen.
I even tried 800X600, but that was just worse.
Without the start button and task bar, it is hard to try anything.
[URL]
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 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
View 1 Replies