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7-ZIP - There are data after end of archive (Plesk tar backups)

Tar archive files generated by Plesk web server backups generate following errors when trying to open them with 7-ZIP (v7.90):

Error opening .tar archive - There are data after end of archive.

This kernel requires following features not present on the CPU: pae

Issue

Trying to run Linux based OS on Oracle VM VirtualBox. Following error is displayed:

List and run last used commands in Linux

To list through most recently used commands one by one use Arrow-Up key

To display all used commands:
history

To run a command from the history list:
!391
where 391 command number

Ubuntu Grub - Change Default OS

If you install Ubuntu as a second Operating System alongside Windows, every time computer boots you will be presented with a Grub boot menu where you can make a choose which OS to boot. If you don't make any choice in 10 seconds your default OS will boot. Obviously after installing Ubuntu it will become the default Operating System.
You may want to change your default OS or reduce Grub timeout. Probably easiest way to achieve this is to install StartUp-Manager.

Open Terminal and run sudo apt-get install startupmanager and wait until installation is completed.
Open Dash Home, type "Startup" in the search box and open StartUp-Manager
In StartUp-Manager select your Default OS and reduce reduce timeout if required. Click Close to save changes

7-ZIP - There are data after end of archive (Plesk tar backups)

This kernel requires following features not present on the CPU: pae

Issue

List and run last used commands in Linux

Ubuntu Grub - Change Default OS

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