Linux


Troubleshooting

How to fix “error: unknown filesystem. grub rescue>” in Linux Mint and Ubuntu

How to fix the Linux Mint and VirtualBox video hardware acceleration problem


Encryption

How to password protect files and folders with encryption

How to password protect a PDF file

How to remove a password from a PDF file


Other

How to resize multiple images at once online

How to compress (zip) files and folders

How to unzip and open rar, zip, tar, gz, and 7z files