7-Zip is open source software and abolutely Free. Most of the source code is under the GNU LGPL license. The unRAR code is under a mixed license: GNU LGPL + unRAR restrictions.
Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR
Unpacking only: RAR, CAB, ISO, ARJ, LZH, CHM, MSI, WIM, Z, CPIO, RPM, DEB and NSIS
For [...]
SoftPerfect File Recovery is a free and useful tool to restore accidentally deleted files from hard and floppy disks, USB flash drives, CF and SD cards and other storage media. It supports the popular file systems such as FAT12, FAT16, FAT32, NTFS and NTFS5 with compression and encryption. If your important files disappeared and you [...]
Recuva (pronounced “recover”) is a freeware Windows utility to restore files that have been accidentally deleted from your computer. This includes files emptied from the Recycle bin as well as images and other files that have been deleted by user error from digital camera memory cards or MP3 players. It will even bring back files [...]
CCleaner is a freeware system optimization and privacy tool. It removes unused files from your system - allowing Windows to run faster and freeing up valuable hard disk space. It also cleans traces of your online activities such as your Internet history. But the best part is that it’s fast (normally taking less than a [...]