How to Speed Up a Slow Windows 11 PC Without Installing Anything (10 Built-In Tweaks)

Your Windows 11 PC used to be fast. Now it takes 2 minutes to boot, apps take forever to open, and everything just feels… sluggish.

Before you spend money on a “system optimizer” (most of which are borderline scareware), try this: Windows 11 already has every tool you need to speed things up. The problem is that these tools are buried in settings menus that nobody checks.

Here are 10 tweaks that use nothing but built-in Windows features. No downloads, no registry hacks, no risk.

Tweak 1: Disable Startup Apps (Biggest Impact)

This is the single most impactful change you can make. Most PCs accumulate 10-20 apps that launch at startup, and you probably only need 2-3 of them.

1. Press Ctrl + Shift + Esc to open Task Manager
2. Click the Startup apps tab (left sidebar in Windows 11)
3. Sort by Startup impact (click the column header)
4. Right-click anything you don’t need at boot → Disable

Safe to disable:

• Spotify, Discord, Skype, Steam, Teams (if not used daily)
• OneDrive (if you don’t use cloud sync)
• Adobe Creative Cloud, Java Update, iTunes Helper
• Manufacturer bloatware (HP Support, Dell SupportAssist, etc.)

Keep enabled:

• Your antivirus (Windows Security / third-party AV)
• Audio drivers (Realtek, Nahimic)
• GPU software (NVIDIA Container — though GeForce Experience can be disabled)

After disabling, restart your PC and time the boot. You should notice a significant improvement.

Tweak 2: Reduce Visual Effects

Windows 11’s transparency, animations, and smooth scrolling look nice but cost performance — especially on older hardware or PCs without dedicated GPUs.

1. Press Win + R, type sysdm.cpl, press Enter
2. Go to the Advanced tab
3. Under Performance, click Settings
4. Select “Adjust for best performance” (this disables all effects)
5. Then re-enable these two for usability:
   • ☑ Show thumbnails instead of icons
   • ☑ Smooth edges of screen fonts
6. Click Apply → OK

This gives you most of the speed benefit while keeping text readable and file previews working.

Also: Go to Settings → Accessibility → Visual effects → turn off Transparency effects and Animation effects.

Tweak 3: Enable Storage Sense

A nearly full drive makes everything slower. Storage Sense automatically cleans up temporary files, old downloads, and the Recycle Bin.

1. Open Settings → System → Storage
2. Turn on Storage Sense
3. Click Storage Sense to configure:
   • Run Storage Sense: Every month
   • Delete files in Recycle Bin older than: 30 days
   • Delete files in Downloads older than: 60 days (adjust to your preference)
   • Delete temporary files: On

One-time cleanup: While you’re here, click “Temporary files” above Storage Sense. Check all the safe categories (Temporary files, Thumbnails, Delivery Optimization Files) and click Remove files. This can free up several GB immediately.

Tweak 4: Switch to High Performance Power Plan

Windows defaults to “Balanced” mode, which throttles CPU speed to save energy. If you want maximum performance:

1. Open Control Panel → Power Options
   • (If you can’t find it: press Win + R, type powercfg.cpl)
2. Select High Performance
   • Not visible? Click “Show additional plans”
   • Still not visible? Open admin Command Prompt and run: powercfg -duplicatescheme 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c

For laptops: Only use High Performance when plugged in. On battery, switch back to Balanced for better battery life.

Tweak 5: Uninstall Bloatware

Windows 11 comes with pre-installed apps you probably don’t use: Xbox Game Bar (if you don’t game), Clipchamp, News, Weather, etc. OEM PCs from HP, Dell, and Lenovo add even more.

1. Open Settings → Apps → Installed apps
2. Sort by Size (largest first)
3. Uninstall anything you don’t use

Common bloat to remove:

• Manufacturer trial software (McAfee, Norton trials, WildTangent Games)
• Apps you’ve never opened
• Duplicate apps (e.g., two PDF readers, multiple media players)

Tweak 6: Disable Background Apps

Many apps continue running in the background even when you’re not using them.

1. Open Settings → Apps → Installed apps
2. Click the three dots next to an app → Advanced options
3. Under Background app permissions, set to Never

Do this for apps like Spotify, News, Weather, Mail, and other apps you don’t need sending you notifications or updating in the background.

Tweak 7: Adjust Virtual Memory (Paging File)

If your PC has less than 16GB of RAM, adjusting virtual memory can help:

1. Press Win + R, type sysdm.cpl → Advanced tab
2. Under Performance, click Settings → Advanced tab
3. Under Virtual memory, click Change
4. Uncheck “Automatically manage paging file size”
5. Select your main drive → click Custom size
6. Set Initial size to your RAM amount in MB (e.g., 8192 for 8GB RAM)
7. Set Maximum size to 2x your RAM (e.g., 16384 for 8GB RAM)
8. Click Set → OK → restart

This gives Windows a dedicated, fixed-size area on your drive for overflow memory, which is more efficient than letting Windows manage it dynamically.

Tweak 8: Run Disk Cleanup for System Files

Storage Sense handles daily cleanup, but Disk Cleanup can remove deeper system junk:

1. Open File Explorer → right-click your C: drive → Properties
2. Click Disk Cleanup
3. Click “Clean up system files” (this requires admin)
4. Check: Windows Update Cleanup, Previous Windows installations, Temporary files, Delivery Optimization Files
5. Click OK → Delete Files

“Previous Windows installations” alone can free up 10-20 GB if you recently upgraded.

Tweak 9: Disable Search Indexing (For Older PCs)

Windows constantly indexes your files for faster search. On older PCs with spinning hard drives, this creates noticeable slowdown.

1. Press Win + R, type services.msc
2. Find “Windows Search”
3. Double-click it → set Startup type to Disabled
4. Click Stop → Apply → OK

Trade-off: Windows Search will be slower, but your PC won’t constantly read your disk in the background. If you have an SSD, you can probably keep this enabled — SSDs handle indexing without noticeable performance impact.

Tweak 10: Check for Malware and Resource Hogs

Sometimes a “slow PC” is actually a malware problem or a single runaway process eating all your resources.

Quick check:

1. Open Task Manager (Ctrl + Shift + Esc)
2. Click the Processes tab
3. Sort by CPU — is any process consistently using 50%+?
4. Sort by Memory — is any process using multiple GB?

Common resource hogs:

• Antimalware Service Executable using high CPU → Windows Defender is doing a scan. Wait for it to finish or schedule scans for off-hours
• WMI Provider Host using high CPU → usually a driver problem. Update all drivers
• A browser using 4+ GB RAM → you have too many tabs open. Consider a tab suspender extension

For malware: Run a full scan with Windows Security (Settings → Privacy & security → Windows Security → Virus & threat protection → Full scan).

The 3-Minute Speed Boost

If you only have 3 minutes, do these three things:

1. Disable startup apps in Task Manager (Tweak 1)
2. Set visual effects to “best performance” (Tweak 2)
3. Run Storage Sense cleanup (Tweak 3)

These three alone will make your PC noticeably faster. Come back later for the other 7 tweaks when you have more time.

Frequently Asked Questions

How much faster will my PC be after these tweaks?

It depends on your current state. A PC with 20 startup apps, full disk, and all visual effects enabled can see boot time cut in half and apps opening 2-3x faster. A PC that’s already fairly optimized might see modest improvements.

Will these tweaks help if I have an SSD?

SSDs are less affected by disk-related tweaks (Storage Sense, Disk Cleanup, disabling indexing). But startup apps, visual effects, and power plan changes still make a significant difference even on SSD-equipped PCs.

Should I defragment my drive?

If you have an HDD: yes, Windows automatically defragments weekly. Check in Settings → System → Storage → Advanced storage settings → Drive optimization. If you have an SSD: never defragment it. Windows automatically runs TRIM on SSDs instead, which is the correct optimization for flash storage.

Is there a way to see exactly what’s slowing down my boot?

Yes. Open Task Manager → Startup apps tab. The “Last BIOS time” in the top right shows how long your hardware takes before Windows starts. The “Startup impact” column shows which apps slow down boot most. Disable the high-impact ones first.

No Junk Software Needed

Every “speed up your PC” guide on the internet wants you to download something. You don’t need to. Windows 11 has every optimization tool built in — they’re just hidden in settings menus. Master these 10 tweaks and your PC will run the way it did when it was new.

Last updated: February 2026 | Tested on Windows 11 24H2/25H2