Windows 10: Win 10Pro- Why do I get a black line in the Taskbar?

Hello Team ,Can some one help me , why do i get the Black line in the task bar ?can some one share me the windows10pro .Please do help me with this Thanks* Original title: Operating system

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Steps to downgrade from Win 10PRO to 7PRO & Server 2016Std to Server 2012Std

1. What are the steps to downgrade from Win 10PRO to 7PRO?

2. What are the steps to downgrade from Win Server 2016 Std to Win 2012 Std?

 

win 10 update leaves vertical pink line on screen

today i applied latest win 10 update and now i have a vertical pink line on screen, it remains on every screen. i have tried these fixes

Step 1: I suggest you to run SFC scan,
System File Checkeris a utility in Windows that allows users to scan for corruptions in Windows system files and restore corrupted files.

Follow the below steps:

• Right click on the Start button, click on
  Command Prompt (Admin).
• Type “sfc /scannow” without the quotes and hit
  Enter.
• After the scan, restart the computer and check for the issue.

Step 2: Also, I suggest you to update the display drivers and check.

Steps to Update the Display Adapter driver.

• Press Windows key + Xkey when you are at desktop.
• Select Device Manager.
• Expand Display Adapter.
• Right on the Display Adapter and click on
  Update driver software

BUT i still have the line on screen.

 

Black Vertical Line just on my desktop screen

Hi,

I have the similar problem in my lenovo g50-80 with windows 10. it's like this -Whenever I open a window on the desktop a 1 pixel wide vertical black line appears. However
when I press win+D or click the right side of the taskbar to show the desktop the line disappears. But if there is a window open on the desktop or I manually minimize/close all of my windows the line remains.

I've tried the the support engineers suggestion but it didn't work