OneDrive

OneDrive is Microsoft's cloud storage and file synchronization service, originally launched in 2007 as Windows Live Folders (later SkyDrive) before being rebranded to OneDrive in 2014. It is deeply integrated into the Windows operating system, Microsoft 365, and the broader Microsoft ecosystem. With over 400 million users, OneDrive is a cornerstone of Microsoft's productivity strategy, serving as the default save location for Windows, the backbone of SharePoint document libraries, and the personal storage layer for Microsoft 365 subscribers. For organizations already invested in Microsoft's ecosystem, OneDrive is effectively a given rather than a choice.

Windows and Microsoft 365 Integration

OneDrive is built into Windows 10 and Windows 11, appearing natively in File Explorer without requiring a separate download. Files on Demand — Microsoft's version of cloud-only file access — shows all cloud files locally without downloading them, similar to Dropbox's Smart Sync. For Microsoft 365 subscribers, OneDrive is the storage layer behind Word, Excel, PowerPoint, and Outlook. When you save a document in Word, it defaults to OneDrive. When you attach a file in Outlook, you can share a OneDrive link instead of an attachment. This deep integration makes OneDrive nearly invisible to users — it just works as part of the Microsoft workflow.

Real-Time Coauthoring

OneDrive enables real-time coauthoring in Microsoft Office applications. Multiple users can simultaneously edit Word documents, Excel spreadsheets, and PowerPoint presentations stored in OneDrive, with changes appearing in real time. This works in both the desktop Office apps and the web versions (Office Online). AutoSave continuously saves changes, and version history retains up to 25 versions (or 30 days on personal plans, more on business plans). The coauthoring experience is smooth in web apps but can occasionally lag in the desktop applications during complex simultaneous edits.

Security and Compliance

OneDrive for Business includes enterprise-grade security features: data encryption in transit (TLS) and at rest (BitLocker and per-file encryption), sensitivity labels from Microsoft Purview, Data Loss Prevention policies, and compliance certifications including SOC 1/2, ISO 27001, HIPAA, and GDPR. Personal Vault is a unique feature that adds an extra layer of protection for sensitive files — it requires two-factor authentication to access and automatically locks after a period of inactivity. Ransomware detection automatically notifies users of suspicious file changes and helps restore affected files.

SharePoint and Teams Integration

In the enterprise context, OneDrive and SharePoint are deeply intertwined. Every Microsoft Teams channel has a SharePoint document library behind it, and files shared in Teams chats are stored in OneDrive. This unified storage layer means search across OneDrive, SharePoint, and Teams surfaces results from all three. For IT administrators, this integration simplifies storage management, policy enforcement, and compliance — but it also means the distinction between OneDrive and SharePoint can be confusing for end users who do not understand where their files actually live.

Pricing and Storage

OneDrive offers 5GB of free storage — more than Dropbox (2GB) but less than Google Drive (15GB). The standalone 100GB plan costs $1.99/month. However, most users access OneDrive through Microsoft 365 subscriptions: Personal ($6.99/month) includes 1TB, and Family ($9.99/month) includes 1TB per person for up to six people. Business plans start at $5/user/month for 1TB. The Microsoft 365 bundle — which includes Word, Excel, PowerPoint, Outlook, and 1TB of OneDrive — makes OneDrive one of the best value cloud storage options when you factor in the included office applications.