Windows shows black screen with mouse cursor after logon welcome screen

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Hi, please i need help.

 

i just installed some updates on my windows 7 Dell Laptop, which the updates includes: Microsoft Essential and i updated my vlc. later on i did restart and after welcome screen i just saw my laptop black out with mouse cursor. i thought it will just be for

some minutes or maybe due to some changes i just did. but it was all like that for more than 30 mins. it was so really frustrating, i wanted to browse to do some work i couldn't do anything again i have to stay awake for two hours shutting the laptop down

and booting again still the same thing.

 

after on i tried to boot in safe mode, which was successful but i realized that some of my softwares would not open, i shutdown again to boot to normal windows thinking maybe is because i boot in safe mode. it was so worst in normal windows. still on black

screen but it didnt last long for 15 mins and the desktop background came up. i was happy but still my softwares like browser, corel and some other apps will not open, i decided to uninstall the vlc again, but showing me you dont have sufficient permission

to access the application please contact your computer administrator. i was just helpless.

 

the screen task bar atimes turned to white if i restart the windows or shut it down and put it on again. but windows media player works perfectly i can watch film and i can scan with the Microsoft Essential. i checked the settings to see maybe is the Microsoft

Essential i downloaded that denied me access to the applications but is not.

 

MS Word Not opening, Firefox not opening file explorer not working device manager not working, i also tried to use cmd to chkdsk showed me access denied. nothing than to just post the issue if i can see any favourable solution will be so glad. i have tried

to do system restore although i will loose the Microsoft Essential Application. that still will not come up at windows startup. and i will not want to accept windows reinstall option cause i will seriously have to start from the scratch and it will cause me

stress and time loss. please help out.

 

Thanks

 

 

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