Free Up Space on Your Windows PC: A Step‑by‑Step Guide for UK Users

Why Windows storage gets out of hand

Even if you primarily use an Android phone, most of us also rely on a Windows laptop or desktop for work, gaming or media editing. Between the operating system, the apps you install, the endless stream of downloads and the background files Windows creates (temporary files, hibernation data, restore points, etc.), it’s easy for the primary drive to fill up without you noticing. Running low on space can slow down boot times, cause update failures and make everyday tasks feel sluggish – something no UK user wants when trying to squeeze the most out of a contract‑bound device.

Start with Windows’ own storage overview

1. Open the Settings panel – press Win + I.
2. Navigate to System → Storage.
3. At the top you’ll see a bar chart that splits your main drive into categories such as Apps & features, Temporary files, Documents, Pictures, Videos, Other and System & reserved.

Click any segment to drill down. This built‑in view is a quick way to spot the biggest offenders before you reach for third‑party tools.

Trim down installed applications

Most users find that old games, trial software or forgotten utilities take up the most gigabytes.

• Go to Settings → Apps → Installed apps.
• Change the Sort by dropdown to Size (large to small).
• For each app you no longer need, click the three‑dot menu (…) and select Uninstall.
• If you have a secondary drive, some Microsoft Store games also offer a Move button, letting you shift the bulk of the data off the primary SSD.

Clean temporary and system files

The Temporary files section lists items you can safely delete:

• Thumbnails, Recycle Bin, Previous Windows installations, Windows Update cache, and more.
• Tick the boxes you’re comfortable clearing and hit Remove files.
• For a deeper sweep, click Cleanup system files – this reveals additional categories such as Delivery Optimization files and Windows upgrade logs.

"Be careful with Downloads and the Recycle Bin — while those spots can use lots of space, you might not want to delete them outright," notes Engadget’s Ben Stegner.

Tame Windows‑specific storage hogs

Hibernation file (hiberfil.sys)

If you never use the hibernate function, the hidden hiberfil.sys file can consume several gigabytes. To disable it:

1. Search cmd, right‑click Command Prompt, choose Run as administrator.
2. Type powercfg /hibernate off and press Enter.
3. To re‑enable later, run powercfg /hibernate on.

System restore points

Windows automatically creates restore points, which can add up over time.

1. Open Control Panel → System → System Protection.
2. Select your system drive, click Configure.
3. Drag the Max Usage slider down to a lower percentage, or click Delete to wipe all existing points if you need immediate space.

When the built‑in tools aren’t enough – third‑party scanners

The native storage view groups files by type but doesn’t show the exact size of individual folders. Two free utilities are especially handy for UK users who prefer a visual hierarchy:

TreeSize Free

• Download from the official Jam Software site and run it as administrator.
• Choose Select Directory → *C:* (or any other drive you want to scan).
• The program lists folders from largest to smallest; expand the arrows to drill into sub‑folders.
• Common culprits include Program Files, Program Files (x86), Users[YourName]\AppData, and large Downloads folders.

dupeGuru

• This tool hunts for duplicate files across the whole system – perfect for spotting multiple copies of movies, music or installers that waste space.
• Run a quick scan, review the results, and delete duplicates only after confirming they’re truly redundant.

Practical ways to free space after you’ve identified the hogs

• Uninstall unused games via Steam, Epic or the Microsoft Store.
• Move large media (videos, raw photos) to an external SSD or HDD. A 1 TB portable SSD costs around £80‑£100 in the UK and offers fast transfer speeds for occasional editing.
• Off‑load to the cloud – Google Photos, OneDrive and Amazon Photos all provide generous free tiers; set them to sync automatically and then delete the local copies.
• Enable Storage Sense – back in Settings → System → Storage, toggle Storage Sense on. Configure it to run when free space falls below a threshold (e.g., 10 GB) and to clean temporary files and the Recycle Bin automatically.

A final checklist for the UK‑based contract‑deal hunter

• [ ] Review Apps & features and uninstall anything you haven’t opened in the last six months.
• [ ] Run Temporary files cleanup and enable Cleanup system files.
• [ ] Disable hibernation if you never use it.
• [ ] Trim restore points to a sensible size.
• [ ] Scan with TreeSize Free and delete or relocate the biggest folders.
• [ ] Run dupeGuru to eliminate duplicate media.
• [ ] Set up Storage Sense for ongoing maintenance.
• [ ] Consider a secondary internal or external drive if you regularly hit the 80 %‑full mark.

By following these steps you’ll reclaim dozens of gigabytes, keep Windows updates running smoothly and avoid the dreaded “insufficient storage” warnings that can interrupt your workflow – whether you’re editing Android screenshots, streaming music, or simply browsing the web on a contract‑linked laptop.

All instructions are based on Windows 11 as of 2026. Earlier versions may have slightly different menu names.