First, the Open Source Intelligence (OSINT) Framework is the collection and analysis of information that is gathered from public, or open, sources.  It is an EXCELLENT resource 

Most of these utilities I have found and rely on are for Windows.  

1. File Renaming/Copying/Syncing/Managment

   1. Bulk Rename Utility allows you to easily rename files and entire folders based upon extremely flexible criteria.

   2. TreeSize Professional by Jam-Software is a powerful and flexible hard disk space manager for all Windows versions and client/server versions currently supported by Microsoft.

   3. FolderMatch by Salty Brine Software folder comparison and synchronization software for Windows XP/2003/Vista/7,8,10 - 32 & 64 bit

   4. FolderClone by Salty Brine Software A 'Set it and Forget it' synchronization solution for  Windows XP/2000/2003/Vista/Win 7,8,10

   5. GoodSync - Easy-to-use software automatically backs up and syncs your files between any computer, mobile device or drive; with or without using the cloud. All this with no monthly fees!

2. SSH/Telnet/etc. 

   1. PenguiNet by ssiliconcircus is an all-in-one SSH client for Windows! PenguiNet includes an SCP browser, so that you can easily transfer files with just a few mouseclicks.

   2. PuTTY is an SSH and telnet client, developed originally by Simon Tatham for the Windows platform.

   3. Bitvise SSH Client is an SSH and SFTP client for Windows.

   4. Bitvise SSH Server is an SSH, SFTP and SCP server for Windows.

   5. WinSCP is an open source free SFTP client, FTP client, WebDAV client and SCP client for Windows.

   6. SFTP Net Drive by EldoS Access remote disk over net using SFTP protocol and map it to local drive letter - SFTP Net Drive

3. Compression 

   1. 7-Zip is a file archiver with a high compression ratio.

   2. WinZip  The world's #1 compression software is also your one-stop file manager. Zip, protect, manage and share your files with WinZip.

4. Password

   1. eWallet by iLium Software helps you by keeping your passwords safe, but easy for you to access when you need them...

5. Notes/ToDo Lists, etc.

   1. Evernote lets you capture, nurture, and share your ideas across any device.

6. Notepad Editing

   1. UltraEdit's text editing features make editing lists and columns an intuitive experience, not the exercise in tedium it used to be. With features like multi-caret editing, column/block editing and multi-select, it's a simple text editor when you want it to be, and a multi-cursor power editor when you need it to be.  It also can edit directly from SFTP/SSH servers.

   2. Notepad++  is a free (as in "free speech" and also as in "free beer") source code editor and Notepad replacement that supports several languages. Running in the MS Windows environment, its use is governed by GPL License. 

7. Virtual CD/DVD Utilities

   1. UltraISO by EZB Systems is an ISO CD/DVD image file creating/editing/converting tool and a bootable CD/DVD maker

   2. Virtual Clone Drive by Elaborate Bytes Mount ISO files with Virtual CloneDrive and use them like a physical drive. Virtual CloneDrive is freeware and has been downloaded more than 10,000,000 times!

8. Network

   1. Wireshark is the world’s foremost and widely-used network protocol analyzer.

   2. NETworkManager is a powerful open source tool for managing networks and troubleshooting network problems! It's awesome, check it out!!

9. Security Utilites

   1. NMAP - the Network Mapper - Free Security Scanner

   2. VirusTotal.com is a free service that analyzes suspicious files and URLs and facilitates the quick detection of viruses, worms, trojans, and all kinds of malware.

   3. Snare and Epilog Agents - The Snare Server secures your event logs with encrypted log transport and time stamped message files, which is of major relevance.

   4. GNU WGet is a free software package for retrieving files using HTTP, HTTPS, FTP and FTPS the most widely-used Internet protocols. It is a non-interactive commandline tool, so it may easily be called from scripts, cron jobs, terminals without X-Windows support, etc.

   5. QuickHash GUI is an open-source data hashing tool for Linux, Windows, and Apple Mac OSX with graphical user interface (GUI).

10. LDAP 

    1. LDAP Administrator by Softerra s an easy-to-use LDAP administration tool designed to work with almost any LDAP server including Active Directory, Novell Directory Services, Netscape/iPlanet, etc.

    2. LDAP Browser by Softerra is a lightweight version of Softerra LDAP Administrator. It supports read-only operations that do not modify LDAP directory data, e.g. browsing, search, export, etc.

11. Adobe Photoshop and Premiere Elements You take pictures and video of all your special moments. Adobe Photoshop Elements 15 & Premiere Elements 15 automates the organizing and editing so you can have fun creating and sharing amazing photos and movies.

12. Remote Support

    1. DameWare Mini-Remote Control Remote control software for help desks of any size.

    2. Bomgar Remote Desktop Support #1 Remote Support Tool of Leading Enterprise Support Organizations

    3. TeamViewer allows you to create a remote support session or an online meeting including supporting Android Phones, tablets, etc.

13. System Admin Utilities

    1. Remote Desktop Manager by Devolutions 

    2. Free and Paid utilties i.e. openssl client for Windows, @ Itefix

14. Backup Tools

    1. Veeam® Endpoint Backup™ FREE provides a simple solution for backing up Windows-based desktops and laptops.

15. Misc. Freeware Utilities

    1. NirSoft NirSoft web site provides a unique collection of small and useful freeware utilities

16. Windows Sysinternals - The Sysinternals web site was created in 1996 by Mark Russinovich to host his advanced system utilities and technical information. Whether you’re an IT Pro or a developer, you’ll find Sysinternals utilities to help you manage, troubleshoot and diagnose your Windows systems and applications.  You can find the entire Sysinteranls Suite extremely helpful as a Microsoft System Admin.

17. Media Tools

    1. SD Card Formatter - This software formats all SD memory cards, SDHC memory cards and SDXC memory cards. 

18. Debugging

    1. Fiddler - The free web debugging proxy for any web browser, system, or platform by Telerick.

19. Boot Utilities

    1. General Boot CD's for system utilities

       1. Hiren Boot CD

       2. FalconFour’s Ultimate Boot CD

       3. SystemRescueCD

       4. Ultimate Boot CD

       5. Trinity Rescue Kit

20. CloneZilla

    1. Security Boot Distrobutions

       1. BackTrack

       2. Operator

       3. PHLAK

       4. Auditor

       5. L.A.S. Linux

21. Maps

    1. Google Earth Pro {Now Free}

22. Scripting

    1. AutoIT v3 is a freeware BASIC-like scripting language designed for automating the Windows GUI and general scripting. It uses a combination of simulated keystrokes, mouse movement and window/control manipulation in order to automate tasks in a way not possible or reliable with other languages.

23. Free Operating Systems

    1. CouldReady by neverware

24. Virtual Enironments

    1. EVE-NG PRO allows enterprises, e-learning providers/centers, individuals and group collaborators to create virtual proof of concepts, solutions and training environments.

25. CyberChef A simple, intuitive web app for analysing and decoding data without having to deal with complex tools or programming languages. CyberChef encourages both technical and non-technical people to explore data formats, encryption and compression.