AirDroid - Access Android phone/tablet from computer remotely and securely. Manage SMS, files, photos and videos, WhatsApp, Line, WeChat and more on computer.
WinDirStat - WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
Droid Explorer - A tool to manage your rooted Android device with the simplicity of Windows Explorer.
WizTree - WizTree quickly finds the files and folders using the most space on your hard drive. It scans the MFT (Master File Table) instead of crawling the entire disk which makes it very fast.
Wondershare MobileGo - Wondershare MobileGo is a dependable and convenient application that can help you to reinforcement or exchange information from your Android mobile phone to the PC and access particular applications to deal with your records effortlessly.
SpaceSniffer - SpaceSniffer is a freeWare (donations are welcome) and portable tool application that lets you understand how folders and files are structured on your disks.