The 500GB System File That Eats Your Hard Drive Something on your Windows 10 drive is consuming hundreds of gigabytes and the normal tools cannot find it. This guide identifies every known culprit — from hibernation files and shadow copies to runaway backups and the Windows component store — and tells you exactly what is safe to delete, what to leave alone, and what the commands actually do.
How I Used Azure File Sync During a Large Migration Project Azure File Sync was not the tool I reached for first on this migration. It became the right tool once I understood what the project actually needed: zero-downtime data movement while users kept working, cloud tiering to free local disk on branch servers, and a single source of truth in Azure before the on-premises servers were decommissioned. Here is exactly how I deployed it, configured it, and used it across a six-site migration. FA Francis Avorgbedor Azure Engineer July 16, 2026 20 min read Azure File Sync · Migration · Field Notes 6 Sites: HQ and five branch offices across the UK — all migrated with zero scheduled downtime 22TB Total data across 12 Windows file servers — reduced to 4.8TB local cache via cloud tiering 30 Maximum server endpoints per sync group — we used 7, one per site plus one migration server 3 Configuration mistakes that taught me the most — documented in full below Background The Project: Six ...