How to Speed Up Windows 11: 12 Expert Tips That Actually Work

Tip 1: Disable Startup Programs

The #1 reason PCs feel slow is too many programs launching at startup. Every one of them consumes RAM and CPU before you even open a browser.

1. Press Ctrl + Shift + Esc to open Task Manager
2. Click the Startup apps tab
3. Sort by Startup impact
4. Right-click and Disable anything you don't need immediately at boot

Safe to disable: Spotify, Discord, Steam, OneDrive, Teams, Skype, Adobe Creative Cloud, iTunes, Zoom. These can all be opened manually when you need them.

Don't disable: Antivirus, audio drivers (Realtek), graphics drivers (NVIDIA/AMD control panel).

Tip 2: Clean Temporary Files

Windows accumulates gigabytes of temp files, update caches, and log files. Cleaning them frees disk space and reduces I/O overhead.

1. Press Win + R, type %temp%, press Enter
2. Select all (Ctrl + A) → Delete
3. Skip any files that are “in use”
4. Also run: cleanmgr /sageset:1 → check all boxes → OK
5. Then run: cleanmgr /sagerun:1

Tip 3: Disable Visual Effects

Windows 11's animations and transparency effects look nice but consume GPU and CPU resources, especially on older hardware.

1. Press Win + R, type sysdm.cpl, press Enter
2. Go to Advanced tab → Performance → Settings
3. Select “Adjust for best performance”
4. Then re-check: “Smooth edges of screen fonts” and “Show thumbnails instead of icons”
5. Click OK

Tip 4: Disable SysMain (Superfetch)

SysMain preloads apps into RAM based on usage patterns. On SSDs, the benefit is negligible and the disk I/O overhead can actually slow things down.

1. Press Win + R, type services.msc
2. Find SysMain → right-click → Properties
3. Set Startup type to Disabled → click Stop → OK

Tip 5: Disable Windows Search Indexing

The search indexer constantly scans your files to build a search database. If you rarely use Windows Search, disabling it eliminates significant background disk activity.

1. In services.msc, find Windows Search
2. Right-click → Properties → Startup type: Disabled → Stop → OK

Tip 6: Set Power Plan to High Performance

Windows 11 defaults to “Balanced” which throttles CPU speed to save power. On desktops, there's no reason not to use High Performance.

1. Open Control Panel → Power Options
2. Select High performance
3. If it's not visible, click “Show additional plans”

Tip 7: Uninstall Bloatware

Windows 11 comes with pre-installed apps you probably don't use: Clipchamp, News, Weather, Xbox Game Bar, Phone Link, etc.

1. Go to Settings → Apps → Installed apps
2. Sort by size
3. Uninstall anything you don't use

PowerShell nuclear option (removes all pre-installed apps for current user):

Get-AppxPackage | Where-Object {$_.IsFramework -eq $false} | Remove-AppxPackage

Warning:This removes everything including Microsoft Store. Only do this if you know what you're doing.

Tip 8: Run SFC and DISM

Corrupted system files cause random slowdowns, crashes, and weird behavior. SFC and DISM repair them.

1. Open Command Prompt as Administrator
2. Run: DISM /Online /Cleanup-Image /RestoreHealth
3. Wait 10-15 minutes
4. Run: sfc /scannow
5. Restart

Tip 9: Upgrade to an SSD

If your PC still has a mechanical hard drive (HDD), this is the single biggest upgrade you can make. An SSD makes Windows 11 boot in 15 seconds instead of 2 minutes. Everything feels instant.

A 500GB SATA SSD costs about $40. A 1TB NVMe SSD costs about $60. Clone your existing drive with free tools like Macrium Reflect or Samsung Data Migration.

Tip 10: Add More RAM

Windows 11 needs at least 4GB RAM but runs poorly with less than 8GB. If you have 4GB, upgrading to 8GB or 16GB makes a massive difference — especially if you use Chrome.

Check your current RAM: Task Manager → Performance → Memory. If usage is consistently above 80%, you need more.

Tip 11: Check for Malware

Crypto miners, adware, and background malware consume CPU and network resources without you knowing.

1. Open Windows Security → Virus & threat protection
2. Click Quick scan (or Full scan for thoroughness)
3. Also run Malwarebytes (free version) for a second opinion

Tip 12: Reinstall Windows (Last Resort)

If nothing else works and the PC has years of accumulated software, a clean Windows install is the nuclear option. It's dramatic but effective.

1. Back up your files to an external drive
2. Go to Settings → System → Recovery → Reset this PC
3. Choose “Remove everything” → “Cloud download”
4. Reinstall your essential apps

Before going nuclear, try RescuePC's Fix All mode first. It resolves most performance issues without the hassle of a full reinstall.

Summary: The Quick Version

Or skip tips 1-8 entirely and run RescuePC Toolkit's Fix All mode. 109 repair tools, 37 safe for unattended execution. Built from real hands-on experience fixing PCs every day.