Tutorial To Remove .Nightmare File Virus from Windows XP

.Nightmare File Virus causes following error 0xf0801 CBS_S_BUSY operation is still in progress, 0x000000F4, 0x00000044, 0xC0000221, 0x80244033 WU_E_PT_ECP_FAILURE_TO_EXTRACT_DIGEST The file digest could not be extracted from an external cab file., 0xf0813 CBS_E_INVALID_INSTALL_STATE install state value not acceptable, 0x8024D003 WU_E_SETUP_ALREADY_INITIALIZED Windows Update Agent could not be updated because of an internal error that caused setup initialization to be performed twice., 0x80240038 WU_E_WINHTTP_INVALID_FILE The downloaded file has an unexpected content type., 0x8024A000 WU_E_AU_NOSERVICE Automatic Updates was unable to service incoming requests., 0x00000069, 0x0000005B, 0x8024000A WU_E_COULDNOTCANCEL Cancellation of the operation was not allowed., 0x000000EA, 0x80240013 WU_E_DUPLICATE_ITEM Operation tried to add a duplicate item to a list.

Easy Steps To Delete .Nightmare File Virus From Infected Operating System

.Nightmare File Virus is deemed as Operating System malware which is programmed to destroy your data and other important documents stored on Operating System. This type of malware enter your Operating System in many ways. It generally employs deceptive methods to enter the Operating System like spam emails, infected media devices, peer to peer file sharing, free downloads and so on. .Nightmare File Virus once installed on your Operating System, starts it execution automatically. You will not be able to know that virus has attacked your Operating System because it silently enters your Operating System.

After invading your Operating System, it can make your files and other documents inaccessible. It can make your Operating System slow and sluggish. Applications or programs may freeze or hang. Therefore, it is very important to Delete this malware if you find it on your Operating System.

Complete Removal Guide For .Nightmare File Virus From Operating System

Part 1 : Steps To Open Your Operating System In Safe Mode

In Windows XP/Vista/7 :

Goto Start menu - > Restart button.

Continue to press F8 button when your Operating System starts booting-up.
Here, you will find Advance boot menu window on your Operating System screen.

Select Safe Mode With Networking Option and hit Enter key.

In Windows 8/10 :

Click on Start menu press Shift key and click on Restart button.

Select Troubleshoot option -> Advanced.
Click on Startup Settings.

Select Enable Safe Mode option.
Click Restart button.

Press F5 button to use Safe Mode With Networking option.

Part 2 : Delete .Nightmare File Virus From Firefox

Delete .Nightmare File Virus From Internet Explorer

You can click on gear icon present at the right-top corner of the browser to open menu.
Click on Manage Add-ons.
Select Toolbars and Extensions tab..
Select unwanted add-ons particularly related to .Nightmare File Virus.
Click on Disable button.
Click on More information button.
At last, click on Delete button to finally Delete the virus.

Delete .Nightmare File Virus From Mozilla Firefox

Launch Mozilla Firefox browser on your Operating System.
Click on Menu button at the top right corner of the browser.
Click Add-ons.
Goto Add-ons Manager tab.
In the Add-ons Manager tab, select Extensions or Appearance panel.
Select .Nightmare File Virus add-ons you want to Delete.
Click the Delete button and restart your Operating System if any pop up asks you to restart.

Delete .Nightmare File Virus From Google Chrome

Click on gear icon present at the top right corner of the window to open Chrome menu.
Click on the Tools option - > Extension tab.
Locate unwanted extensions related to .Nightmare File Virus.
At last, click on trash bin icon to Delete .Nightmare File Virus.

Delete .Nightmare File Virus From Microsoft Edge

Click on More (...) icon at the top right corner and goto Settings option.

Here, click on A specific page or pages option under the Open with option.
Select Custom and enter URL which you want to set as your browser's default homepage.