Screen Flicker Right After Logon In 8.1
Jul 31, 2014
Recently, I noticed that every time after I log into Windows 8.1 with my password, the screen flickers for like a second. What might have changed to cause this. I haven't installed anything new before the problem occurred.
I do remember that I was fiddling with some display options (changing items sizes) but I did restore them back to the default options. Just updated my nvidia drivers but that didn't solve the issue either.
Win. 8.1 Pro x64bit
i5 3570K stock speed
nVidia GTX 660Ti with 340.52 WHQL driver
8 GB RAM
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Mar 20, 2014
why my monitor screen flickers, like it is having convulsions, from one window to another...it happens for about 5-30 seconds at a time randomly throughout my work day..and can occur when I am browsing, typing in outlook, or typing in word. I have switched monitors, cables, and it still occurs. The problem occurred with a previus laptop (ACER using windows 7) which crashed in Nov. It is now happening again with a new Lenovo desktop using windows 8.1. I bought a new backup battery and that didn't make a difference. I changed outlets and that didn't make a difference.
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Nov 20, 2012
My PC was working fine before today, until I used Ultra UXtheme patcher for Windows 8 x64 and then applied a custom VS for Windows 8.
After a restart, Windows Explorer was not launching, so I opened task manager and did a sfc /scannow. After a reboot, I get to the Windows 8 boot menu (I have a dual-boot on this HDD with win7), and then the screen just turns on and off every few seconds, with the numlock light flickering with the screen.
I tried using the automatic repair, both from the boot menu and from a backup USB, but it does not detect anything. and I still have the same issue.
I restored the backups of uxtheme.dll, uxinit.dll, and themeui.dll, but that didn't work either.
Attached is my ntbtlog.txt.
There is no BSOD, the HDD keeps on spinning a few minutes after boot, and the numlock keeps on flashing. Anything else I can do from my win7 install? I'm currently trying to delete the theme.
Deleting the theme doesn't work, safemode doesn't work either. It seems to be a driver issue, but there were no driver updates when it was working?
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Nov 25, 2012
Windows 8 is showing a black screen before logon and not the logon picture..........................................and it also takes a lot of time to load.
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Sep 15, 2014
This has happened on a few different systems. After it has the login screen, It will go to the desktop (completely black no icons) and a cursor.
Windows sign does not work nothing other then CTRL + ALT + DEL works but wont bring up task manager.
So I end up doing the "Advanced start up" where I Restore the system and do a fresh load, but when I try to run the updates i get the error of
" Log file c:windowssystem32logfilessrtsrttraill.txt "
So I go to CMD (administrator) and run SFC/ Scannow
"Windows Resource Protection could not start the repair service"
then, chkdsk x: /f
Cannot lock current drive, windows cannot run disk checking on this volume because it is write protected. I ended up erasing the HDD and starting from scratch and STILL get the same issue.
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Jul 30, 2014
I recently upgraded from Windows 8 to Windows 8.1. It was fine until I decided to change my account to a microsoft account.
After logging out and restarting, I could not see my user on the log on screen. It still showed up in Control Panel and PC Settings after logging in as another Admin.
To try to fix this I created a new user and was going to copy files into it but this new user didn't show up either.
Is this a Win 8.1 bug or is there something you have to do?
I can always revert to Windows 8 because I backed up my computer before updating but I would not prefer this.
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Jul 13, 2014
I do a lot of remote administration after hours and I often login as an admin user into client workstations to fix various issues. One thing that I do to eliminate confusion is to edit the registry of a Win7 machine and change the HKLMSoftwareMicrosoftWindowsCurrentVersionAuthenticationLogonUILastLoggedOnUser registry value back to the user's username.
That way inattentive users don't keep trying their password with the Admin username when they attempt to login the next day. I see that Windows 8 has the same key, but changing that value doesn't appear to "stick". It appears to be overwritten when you logout/reboot/shutdown. I've also tried deleting the SAM entries in the same key, but that seems to have no effect. I've seen several posts on how to show all users or none on the logon screen, but I'm trying to minimize the changes that end users will experience (complain about). I'm also hoping for a solution that will work with both domain and non-domain joined computers.
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Jan 26, 2014
i had activated guest acc. from control panel ,it was going well since last 2-3 days ,the guest account wont show on logon screen.
it only shows my account which is admin.
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Nov 25, 2013
I have had to reinstall my laptop and now i'm having some trouble finding the tweak to remove the "insert a smartcard" option from my logon box when i try to connect to an external computer with the remote desktop client.
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Feb 25, 2014
I cannot get the touch keyboard or picture password to come up consistently at logon screen. I had to go to services to make the touch-service work with desktop and logon (it was unchecked). Now, at fresh start-up or restart I can get the keyboard by touch but will not get it again if I log off and log back on. And under no conditions do I get the picture password option although I have a picture set up for it.
Fujitsu Lifebook T732
i5, 8Gb, 500Gb
12.5 touch/pen input
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Oct 23, 2013
How big this new 8.1 update is and can it be downloaded as an iso? Also, does it contain any driver updates. I installed Win 8 on a Vista machine and it runs well, except for an annoying blank flicker that occurs when I open and close programs. Tried both a Vista and Win7 video driver but made no difference.
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Apr 30, 2013
I notice a short flicker from desktop icons when you press the "win+d" short cut. Sometimes some application windows also flicker when you use this short cut.
I guess the reason is some kind of refresh for the icons, actually it seems to be the same behaviour when you use the context menu on the desktop (right mouse click) and use the command "refresh".
It can easily be seen when you are on the desktop with all it's icons and have a small window open and then press win+d a couple of times. The Icons refresh and therefore flicker. That should be smoothed out.I notice this behaviour in Windows 8, Win7, XP.
This is no problem with a similar command in OSX or Ubuntu.
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Dec 19, 2013
I do not want to use a Hotmail.com or any similar MS account to create a Windows 8 account but my own user name and password to logon. How to do it?
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Sep 15, 2014
How to enable this? on 8.1
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Jun 25, 2014
In this screenshot you can see what pops up every time this new user logs in to our local network domain. The server name is "goodbuddy" on "TRUCKERSREPORT" domain and it seems to be running some kind of setup right at login every time. I don't want to allow this user admin rights for program changes, but i need to make it so an administrator doesn't have to enter their credentials in this every time this user logs into their computer.
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Jul 17, 2013
I right click on the .exe file in the file manager and select Pin to Start Menu. The Tile appears and works. However, the next time I log on that tile has disappeared. What's happening?
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Oct 20, 2013
how to get the logon, logoff, unlock, lock, shutdown sounds to play in windows 8.1. I have the "play startup sound" box checked off and i also went into the registry and changed the 1s to 0s and brought them to the sounds.
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Dec 1, 2013
Have a Gateway Desktop. Upgraded from 8 to 8.1.
Somehow I disabled the disabled Password Logon and its back asking for a password at boot.
Owner doesn't remember original password when setup.
I have a password blanking cd that I've used on both 8 and 8.1 pc's.
The problem is I can't boot from the CD and I can't, obviously, use that wonderful new setting, "Update", "Update and Recovery" and the option to boot with USB, CD etc. since I can't access the OS.
I have the BIOS set for the CD/DVD drive for first boot however boot options only show the "UEFI: ST....." drive.So I can't boot from within or without.
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Mar 15, 2014
For some reason my computer loads slowly. I log in then black screen with mouse only can be seen. it takes <10 seconds for explorer.exe to appear. I searched for fix and found that it can be fixed by creating new profile. So, I went ahead and created profile. Logged off my current one and find this error when trying to load the new one. "User Profile Service service failed the logon. User profile cannot be loaded".
I then ran sfc /scannow command in Administrator command prompt. It found few files but was unable to repair them. Unfortunately I cannot open log because I have access denied popping up (was working before).
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Aug 28, 2014
I created a new account on Windows 8.1. The login attempt resulted in a "The User Profile Service failed the logon" error.
Attempted the standard registry fix (linked below). However, a SID key does not exist for the new account.
I've tried deleting the account, recreating, recreating in safe mode. Same error at login.
Standard The User Profile Service failed the logon error fix.
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Jun 27, 2013
I've previously set my Windows 8 machine to auto logon without entering my password.
But since then, I've changed the password for the account via hotmail, and now, whenever I turn on my machine it fails to logon with an error that my password is incorrect.
How do I change the stored password to my new password so that it will auto logon again?
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Nov 2, 2013
I do a shutdown from the Windows Logon screen which I believe is a full power off rather than a hybrid shutdown:
(The process C:WINDOWSsystem32winlogon.exe (XXXXX) has initiated the power off of computer XXXX on behalf of user NT AUTHORITYSYSTEM for the following reason: No title for this reason could be found
Reason Code: 0x500ff Shut-down Type: power off)
However when I restart the computer it then goes into a black screen with a pointer and never completes reboot.
The only way to fix this is to reboot again which I am guessing is using the "Hybrid Boot" profile:
"The last shutdown's success status was false. The last boot's success status was true."
This did not occur in Windows 8.
How to diagnose the shutdown culprit?
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Oct 1, 2013
I'm always using a mouse... so I keep my touchpad disabled with the hotkeys so I can type and work without the risk of pressing touchpad.
But each time I logon, or bring my pc back from sleep, windows turns my touchpad back on... this is really frustrating.
Is there a way to prevent windows 8 to turn my touchpad on each time I login? My notebook is a lenovo b590.
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Oct 13, 2013
some public wi-fi services require a sign on (even if free) -- for example in the UK in most Weatherspoon's pubs there is a free wi-fi service -- _the cloud_ I think it's called (the underscores are part of the name). You register once and then it works in almost every Weatherspoon's pub I've ever been in - if you can log on.
(Weatherspoon's pubs while not the best do have on the whole the CHEAPEST beer in the UK and some actually have some good Guest Ales --rare for a Corporate type of chain whatever people think about that particular organisation -- probably learned more POLISH in one of those places than even on a trip to Poland !!!).
Now - especially on phones sometimes the logon message disappears quickly so you can't get connected to the wi-fi even though the phone says "Connected". -- The same happens on a laptop.
Is there anyway to get the logon screen back again without re-booting or disconnecting from that wi-fi service or re-booting a phone.This only seems to happen on PC's with IE10 and above. (Happens on W7 and Windows 8 laptops) and phones where the logon notification can disappear so fast you miss it.
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Sep 28, 2013
I can't get the custom sounds that I've set are not working. I do have the custom startup soind working but that's it.
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Jul 31, 2014
I had a new Windows 8.1 Pro system installed. Was able to logon to it with no problem. The computer name was OWNER. Changed it to what my previous computer was named. Now during startup the Admin logon gives the following message:
The user name or password is incorrect. Try again.
When I click on 'OK' I'm presented with a signon screen with Admin as the user name. No password that I enter works. When I lookup the signon accounts Admin is NOT one of them.
Listed the user accounts and found the following item for Admin:
AccountType=512
Description=
Disabled=FALSE
Domain=JAMESGATEWAY-PC
FullName=JAMES FLETCHER
InstallDate=
LocalAccount=TRUE
Lockout=FALSE
Name=Admin
PasswordChangeable=TRUE
PasswordExpires=FALSE
PasswordRequired=FALSE
SID=S-1-5-21-1214041905-3759206490-3728594358-1001
SIDType=1
Status=OK
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Jul 10, 2014
Just had this new laptop running windows 8 and its an Acer.When I select the photos tile on the screen it goes to another screen which is black with a blue square icon and underneath it tells me that there are no files or folders in this view.There are photos in my picture folder as I just put then in.But if I go to the other method and select the My picture folder the photos are there.
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Dec 14, 2013
I've tried just about everything, but can't seem to find a setting to stop this action. The screen on my laptop (Sony Flip 15A, intel4400/geforce735) seems to increase and decrease in brightness between screens. It's rather annoying not just because of the change, but also because it takes several seconds to occur and it occurs in discrete steps. I'm running the latest drivers from both intel and nvidia. I've tried turning off adaptive brightness and disabling the sensor service, and all effects (fade in, UAC, etc) have been turned off. A video of the condition is shown below:
(Vimeo was taking forever to process)
It even happen when no programs are opening/closing - for example, if I view a dark background web page and then a lighter background, the brightness shifts. I can't imagine how awful this will be in photoshop.
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Jul 14, 2014
I have recently installed windows updates and after restart the black screen occurred after I typed my password. About five days before that I have reinstalled my Mobile Intel 4 series driver and now in Device manager it shows 3 grayed out monitors which were installed when I have reinstalled the Video driver. The monitor driver that Is currently loaded was installed when I installed the OS itself.
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Jun 6, 2014
I've having an issue that I think some ppl had, windows 8 crashing going to blue screen of death or blank black screen and then it restarts by itself, also I have noticed that it says repairing disk in D:/
I have one SSD 120gb in the C:/ which it host the operating system and some minnor programs, in a HDD which is my D:/ drive there I have my games.
ASRock 990FX Extreme 9
AMD FX 8350
Kingston Hyper X 120GB SSD
WD black 500GB HDGB HDD
Corsair Vengeance 8gb Ram 2133Hz
Windows 8
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Nov 7, 2012
I get a blue screen error of "driverirql_not_less_equal" when my laptop monitor dims.
Specs:
OS: Windows 8 Professional (64 bit)
Intel i7 2640M
8 Gb Ram
1T HD
The attached screen capture is the location of my error.
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