Lately, Microsoft has trying to fix Print Nightmare with various methods and patches. The last patch has seemingly fixed Print Nightmare but it has broken the Alt-tab key combination.
It has been reported that the latest patch has broken famous key combinations for quickly switching from window to window. It seems that combination is not working or it is switching to desktop, even going to blank screen if switching from the full-screen game.
Luckily this issue is easily fixable.
The first and easier fix for this issue is surprising to turn off the news and info widget, right-click on it and choose News and interests and then click on turn off.
The second solution would be to uninstall the update. Go to Settings, then to Update & Security, and from there view Update History and remove the update.

Option to right-click on the taskbar and launch task manager is gone but do not worry there are other same and simple ways you can launch it.
Error CausesOnce this error code is encountered, it's a clear indication that your Operating System has malfunctioned. This could be a consequence of an incorrect or failed installation of software. The software might leave invalid entries in the Windows registry. Improper shut down of your system and a malware attack are also causes of error code 0x8007007e. Additionally, someone with little or no technical knowledge might have deleted a system file by accident. Missing system files can also equate to other error codes such as registry error code 19.
You may not always be able to prevent issues from affecting your computer, but proper measures can be taken to limit your risk of experiencing problems like error code 0x8007007e. See the following suggestions below:
System File Checker is a Windows tool that allows users to check their system for corrupt or bad system files. The utility scans for corrupt files and repairs them as well as files that may have gone missing.
Depending on the type of Windows operating system on your computer, you may need to follow varying instructions. However, note that Windows operating systems including Windows 10 and Windows 8 or 8.1 and Windows Vista all provide access to System File Checker via Command Prompt.
Once you run System File Checker, the tool should be able to repair and replace corrupted files. However, in cases where the repair process does not take place, you can attempt a manual repair by replacing the corrupt file the tool identifies with a good file. The process may require technical knowledge of Command Prompt so consider help from a Windows repair technician or consider contacting Windows for instructions based on your computer’s operating system.
The System Recovery Options menu in Windows contains many tools which can enable users to resolve serious errors. In the case of Error Code 0x8007007e, one of the best tools in this menu is System Restore.
When an error occurs which inhibits users from accessing key functions on their system, System Restore enables the user to restores the computer to an earlier period without causing harm to files, photos, or documents.
However, once you run this tool, you will only be able to access files available within the period to which your computer is restored. For this reason, carefully consider which period is best suited to your purposes. Also, ensure you restore the system to a time when error code 0x8007007e was not present on your machine.
If System Restore does not resolve the error, you may undo the restoration changes. Ensure you have sufficient free space on your machine hard disk before you proceed (300 MB at least for hard drives above 500MB or at least 50 MB for smaller sized disks).
When it comes to resolving error codes, it can often be a frustrating and tricky venture, especially when you are attempting to fix the problem manually. The Internet is awash with bits and pieces of instruction, some misleading at best with uncertain success rates.
But what if there was a one-stop-shop or better yet a tool that offered solutions for error codes including 0x8007007e? Download a powerful automated tool that offers easy and effective, user-friendly solutions for users with varying error code problems.
Error CausesGoogle Docs has cemented itself as a great free alternative to Microsoft Office Word. Most of the time people just share links to google Docs among themselves but sometimes you need to save and download files.

Luckily Google docs let you download easily files in various formats including PDF as well. In this short tutorial we will explain how can you download your Google document as a PDF file.
Open the Google document inside the browser and click on the File drop-down menu. In the file drop-down menu go to Download and choose PDF document. Next, choose the location where you would like your file to be saved and click on SAVE.
And that's all that needs to be done. Also, you can edit PDF files as well in google docs if you need to.