Windows PC: How to Clean Up Storage – 4-Step Speed Boost Guide

Why This 4-Step Windows Cleanup Is Worth Your Time

After spending way too many evenings juggling game installs on a cramped SSD, I finally sat down and built a simple 4-step routine to clean up my Windows PCs. It consistently frees up dozens of gigabytes and makes boot times and alt-tabbing noticeably smoother – without risky registry hacks or sketchy “miracle” cleaners.

This guide walks you through the exact workflow I now use on every gaming PC I touch:

• Disable unnecessary startup apps (instant boot-time win)
• Find and deal with huge files/folders using WizTree
• Let Windows’ built-in Disk Cleanup safely remove clutter
• Review background services and apps that you don’t need

Plan about 30-60 minutes for the first run, depending on how messy things are. Once you’ve done it once, keeping your system clean is much faster.

Step 1: Tame Startup Apps with Task Manager

This is always my first move, because it’s 100% reversible and the payoff is huge: faster boot times and fewer background processes nibbling at your RAM and CPU while you game.

Here’s exactly what I do:

• Press Ctrl + Shift + Esc to open Task Manager. (Or right-click the taskbar and choose Task Manager.)
• In Windows 10/11, click the tab or icon labeled Startup apps (the one that looks like a little speedometer).
• Click the Status or Startup impact column to sort.
• Go down the list and right-click anything you don’t need at every boot and choose Disable.

My rule of thumb: if I don’t absolutely need it running all the time, it gets disabled here. Launchers (Battle.net, EA, Ubisoft) and chat apps (unless I use them constantly) are usually safe to disable. You can still run them manually when you want.

Why this is safe: Disabling a startup entry doesn’t uninstall anything. The program just stops auto-starting. If you notice you miss something, hop back into Task Manager and set it to Enable again. I’ve flipped things on and off dozens of times without breaking Windows once.

Common mistakes to avoid:

• Don’t randomly disable stuff from Microsoft, graphics drivers (NVIDIA, AMD, Intel), or your antivirus here. Those usually matter.
• Don’t chase a “zero startup entries” goal just for the sake of it. Aim for “only what I actually use.”

Once you’ve slimmed this list, reboot once. If your desktop appears faster and the tray is less crowded, you’ve already made progress.

Step 2: Find Huge Files and Folders with WizTree

My real breakthrough came when I realized I didn’t have a performance problem – I had a storage problem. Games, captures, old installers… they all quietly eat SSD space. A visual disk scanner like WizTree lets you see exactly what’s hogging your drive instead of guessing.

I use WizTree because it’s fast on SSDs and simple to read. For private use it’s free.

Once WizTree is installed:

• Run WizTree (ideally as administrator so it can read everything).
• Select your main drive (usually C:) and click Scan.
• Wait a few seconds; you’ll see:
  • a folder tree with sizes, and
  • a colored “block” view (treemap) of files, where bigger blocks = bigger files.

Now I do two passes:

• Largest folders: In the top pane, click the Size column to sort. Look for huge folders in your user directory:
  • C:\Users\<YourName>\Videos (screen captures, recordings)
  • C:\Users\<YourName>\Downloads (old installers, ZIPs)
  • C:\Users\<YourName>\Documents (backups, save archives)
• Largest individual files: Switch to the tab that lists files by size. This is where I often find 30–100 GB of forgotten game recordings or ISO images.

Important rules I follow before deleting anything:

• If it belongs to a game or app I installed via Steam, Epic, Origin, Game Pass, etc., I uninstall it through the launcher or Windows, not by deleting the folder.
• I avoid deleting anything under C:\Windows, C:\Program Files or C:\Program Files (x86) unless I’m 100% sure what it is.
• For recordings and downloads, I move them to a secondary drive (HDD or bigger SSD) instead of nuking them if I might need them later.

This one step alone has freed 100+ GB for me on some systems, just by cleaning captures and an overflowing Downloads folder. It’s the fastest way to make room for new games.

Step 3: Use Windows Disk Cleanup (and Storage Sense) Safely

WizTree is great for manual hunting, but there’s a ton of invisible junk Windows can clean up for you: temporary files, old update leftovers, previous Windows installations, and more. This is where I let Windows do the heavy lifting.

Disk Cleanup with System Files

On Windows 10 and 11, I do this:

• Press Win and type Disk Cleanup, then open it.
• Select your system drive (usually C:) and click OK.
• In the small window, click Clean up system files. It will rescan and show more options.
• After the rescan, I usually safely tick:
  • Temporary files
  • Temporary Internet files (if present)
  • DirectX Shader Cache
  • Delivery Optimization Files
  • Windows Update Cleanup
  • Recycle Bin (if I don’t need anything from it)

Two categories need a bit more thought:

• Press Win and type Disk Cleanup, then open it.
• Select your system drive (usually C:) and click OK.
• In the small window, click Clean up system files. It will rescan and show more options.
• After the rescan, I usually safely tick:
  • Temporary files
  • Temporary Internet files (if present)
  • DirectX Shader Cache
  • Delivery Optimization Files
  • Windows Update Cleanup
  • Recycle Bin (if I don’t need anything from it)

Two categories need a bit more thought:

• Previous Windows installation(s) – This can be tens of gigabytes. I only delete it once I’m sure I won’t roll back to the previous Windows version.
• Downloads – Newer Windows versions may list your Downloads folder here. I usually don’t tick this and instead clean Downloads manually so I don’t accidentally lose something important.

Then I hit OK → Delete Files and let it run. Depending on how long it’s been, this can take a few minutes, especially for Windows Update Cleanup.

Optional: Turn On Storage Sense

To keep things cleaner automatically (especially on SSDs), I turn on Storage Sense in Windows 10/11:

• Open Start → Settings → System → Storage.
• Enable Storage Sense.
• Click it to configure:
  • Set it to run Every month (or more often if you’re tight on space).
  • Allow it to delete temporary files.
  • Decide when to clear the Recycle Bin and Downloads (I usually leave Downloads alone here and manage it myself).

This won’t replace a manual spring cleaning, but it prevents your system from getting completely clogged between big cleanups.

Step 4: Trim Background Services and Unused Apps (Carefully)

This is the part that intimidated me at first. Services feel “deep system” and mysterious. The trick is to be conservative and only touch things you can clearly identify. Done right, you can quietly remove a lot of background load.

Review Windows Services

Here’s how I go through services without breaking anything:

• Press Win, type Services and open the app (or press Win + R, type services.msc, press Enter).
• In the list, click the Startup Type column to sort.
• Scroll through items with Automatic startup.

For each service, I ask two questions:

• Do I recognize the name and the program it belongs to? (Example: a backup tool I no longer use, a printer software I uninstalled, an old RGB controller.)
• Do I actually need this running all the time?

If the answer to both is “no, not really,” I usually:

• Double-click the service.
• Change Startup type from Automatic to Manual.
• Click OK.

Setting a service to manual means it won’t start at boot but can still be started by Windows or its parent program if needed. That’s a lot safer than Disabled, which I only use when I’m 100% sure I’ll never need it (and even then, I’m careful).

Services I generally leave alone:

• Anything from Microsoft or that clearly belongs to Windows core components.
• GPU-related services: NVIDIA, AMD, Intel graphics.
• Audio drivers: Realtek, Nahimic, etc.
• Antivirus and security tools.
• Anything you don’t understand after a quick web search.

If you change something and later something breaks (for example, a feature stops working), you can just switch that service back to Automatic. I’ve had to do this once or twice when I got a bit too aggressive early on.

Uninstall Apps You Don’t Use

While you’re in cleanup mode, it’s a good moment to actually uninstall unused software. That frees disk space and may remove extra services and startup entries at the same time.

• Open Start → Settings → Apps → Installed apps (or Apps & features).
• Sort by Size or Install date.
• Uninstall:
  • Old games and demos you’ll never touch again.
  • OEM bloatware (pre-installed trials, toolbars, etc.).
  • Duplicate utilities (three different screenshot tools, for example).

I prefer uninstalling games through their own launchers (Steam, Epic, Battle.net, EA App) to make sure all components are removed cleanly, then using Windows’ list for everything else.

Advanced Escalation (Only If You’re Still Unhappy)

On every PC I’ve cleaned, the 4 steps above were enough to get a healthy boost in free space and responsiveness. But if you’re still struggling, there are a few heavier tools you can consider:

• System Configuration (msconfig): Lets you manage some advanced boot options and services. I only touch this if I’m troubleshooting specific issues.
• Automated cleaners (e.g., Avast Cleanup and similar): Convenient, but you’re trusting a third party with deep system access. Read reviews and avoid letting them “tune” settings you don’t understand.
• Windows Reset (“Keep my files”): As a last resort, Start → Settings → System → Recovery lets you reset Windows while keeping personal files. It’s a nuclear option for performance problems that nothing else fixes.

If you get to this stage, make backups of anything important first. For most people, running the 4-step routine a couple of times a year is more than enough.

Quick Troubleshooting FAQ

Based on my own missteps, here are a few quick fixes:

• Disk Cleanup seems stuck: Windows Update Cleanup can hang for several minutes. Let it run; if it’s still going after 30–40 minutes, restart and try again later.
• Something stopped working after disabling a service: Go back into Services, find what you changed recently, and set it back to Automatic. Restart and test.
• You deleted a game folder manually: The launcher may think it’s still installed. Use its Verify/Repair or uninstall function, or reinstall to the same folder and then uninstall properly.
• Still low on SSD space after everything: Consider moving your biggest games to a secondary drive or external SSD. Tools like Steam’s “Move install folder” are great for this.

Wrap-Up: A Simple Routine That Keeps Windows Game-Ready

If you follow this four-step routine – startup apps, WizTree scan, Disk Cleanup, and a careful service/app review – you’ll usually end up with:

• Noticeably faster boot and login times
• Dozens of gigabytes of free SSD space reclaimed
• Fewer random background processes while gaming
• A clearer picture of what actually lives on your drives

The first run takes the longest, but once you’ve done it, repeating the process every few months becomes a quick maintenance pass. If I can drag my cluttered, game-stuffed PCs back into shape with these steps, so can you.