Windows 8.1 black screen error

Iacob Florin

Reputable
Aug 26, 2014
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I have a Toshiba Satellite C850-176
I upgraded from win 7 32 bit to win 8.1 64bit
My laptop was getting slower just after 5 days since i put my windows and i reboot it several times because the disk was at 100 usage and today it started, it showed the win logo and the dots then a black screen,after that it showed the user and it then it goes black and i have to wait 10 minutes to show the desktop with the start bar with just the logo which i can't click.
I've tried system recovery by pressing F8 but it says that i don't have a restore point,then I tried with the safe mode but it show just the start logo without the dots and don't load,I removed the battery for one day but not even this worked.
I don't have the cd because I installed it with a friend's cd but now i'm at my grandparents till the vacantion is over.
Sorry if a have mistakes,I'm Romanian
 
Solution
this is a guess but
start with this to delete the windows search index (Windows.edb file):
http://answers.microsoft.com/en-us/windows/forum/windows_8-files/how-to-clear-out-the-windowsedb-file-in-windows-8/ab8f67dd-8a30-4b1d-9bee-38ac345a621d
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windows 8 will do a lot more checking of the disk drive, it will attempt repairs that windows 7 did not attempt.
These repairs can take a long time, days if your system is set to go to sleep fast.
You might try: go to windows power management, set it to high performance so it does not sleep. then let the system go idle for overnight.

There are other potential causes: corrupt search index, searching a file system that has a bad link that makes a loop in the file system. The search...
this is a guess but
start with this to delete the windows search index (Windows.edb file):
http://answers.microsoft.com/en-us/windows/forum/windows_8-files/how-to-clear-out-the-windowsedb-file-in-windows-8/ab8f67dd-8a30-4b1d-9bee-38ac345a621d
-------
windows 8 will do a lot more checking of the disk drive, it will attempt repairs that windows 7 did not attempt.
These repairs can take a long time, days if your system is set to go to sleep fast.
You might try: go to windows power management, set it to high performance so it does not sleep. then let the system go idle for overnight.

There are other potential causes: corrupt search index, searching a file system that has a bad link that makes a loop in the file system. The search index just keeps growing its database until it uses the entire disk.

There are also some malware that hides in the file system streams that also can cause the problem. Run malwarebytes
to see if you have one.

in that case you would delete the search index, run a chkdsk /f /r on the drive
then run cmd.exe as a admin
then run the command
sfc.exe /scannow

it will attempt to repair core windows files that might have become corrupted by using a backup copy.

if that finds a error that it can not correct you have to
use the dism.exe command and a online image to do the repair.
 
Solution

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