BleachBit

Free space on your hard drive in the easiest way

EnhanceMySe7en

Make the most of Windows 7

jv16 PowerTools

Optimize the performance and stability of Windows

Eraser

Definitely erases a file from your computer

Argente Disk Cleaner

Remove unnecessary files from your PC

Fix it Center

Detect and fix any Windows error

O&O SafeErase

Manage to permanently remove any file from your computer

Argente Utilities

Complete utiltiy pack for your PC

PC Speed Maximizer

Give your computer more power, fixing the problems it may have

ASTRA32

Obtain information about your system with maximum accuracy

TweakNow WinSecret

Powerful tool to optimize Windows

Start-Q

Control all the processes that start with Windows

FCleaner

One of the best free PC maintenance programs available

MemInfo

Always know how much RAM memory your PC is using

DTweak

Complete tool to optimize your computer

HDShredder

The best way to erase any file from your hard drive

Slife

Keep track of how you spend your time on the computer

Focus Booster

Simple way to improve your productivity

Celtx

Excellent tool for multimedia projects

Mendeley Desktop

Surprising document manager ideal for scientific and bibliographical projects

Bitrix24

Create an intranet for your work team

Project

Create and manage projects and administer your workgroup

Microsoft Teams

Microsoft's business communications tool

JIRA

Manage and organise the work of your project team

Slack

A space for perfect work communications

PriMus-DCF

Software to share catalogs, measurements and budgets

ProjectLibre

A decent free alternative to Microsoft Project

Memo Book

Manage all your documents

Kosmik

Creative visual organization tool

join.me

Hold work meetings wherever you are

OpenProj

The perfect substitute for Microsoft Project