After reading, you will be able to:

  1. 1️⃣ Disable startup apps that waste boot time.
  2. 2️⃣ Clean junk files and free disk space automatically.
  3. 3️⃣ Tune power, visual, and background settings for maximum speed.
Turbo PC Optimizer Kuvakaappaus.
️ Eugene - SoftOrbitsin päätoimittaja, tietojenkäsittelytieteen tohtori, SoftOrbitsin teknologiajohtaja
📅 Viimeksi päivitetty:  2026-10-13

Windows 11 looks modern and runs well on new hardware. After three months of daily use, even a fast PC can drag. Boot times stretch past 30 seconds, Chrome takes five clicks before the first tab renders, and the Start menu hesitates. Common causes include forgotten startup apps, browser caches that reach 800 MB, and transparency effects that make the GPU redraw the taskbar sixty times a second. The fixes below use Windows 11 or Turbo PC Optimizer. If your main goal is smoother games, see how to optimize your PC for gaming.

Why Windows 11 Slows Down Over Time

TL;DR

Windows 11 slows down because startup apps and temp files accumulate quietly over months of use. Background services and visual effects add to the load. Each one alone is small. Together they eat CPU cycles and fill the disk.

A fresh Windows 11 install feels fast because little runs in the background. After you install programs, Spotify can register three startup entries, Chrome can cache 400 MB of images and scripts within the first week, and Windows can leave temporary logs and crash dumps behind. The WinSxS folder can grow past 5 GB on a system that receives regular cumulative updates. Open a Windows event log viewer before clearing files. Its entries can show which app or service is causing the slowdown.

Acrylic blur behind the taskbar and Start menu makes the GPU composite extra layers whenever a window moves or resizes. On a laptop with Intel UHD 620 integrated graphics, the extra draw calls show up as stutter in the task manager GPU column.
Windows Search indexes files continuously, Telemetry (the DiagTrack service) reports usage data to Microsoft, and OneDrive syncs your desktop folder. In Task Manager, "Service Host: Local System" can sit at 5-8% CPU while doing background work.

Disable Startup Programs for Faster Boot

TL;DR

Startup apps are the single biggest reason Windows 11 boots slowly. Disabling the ones you do not need can cut boot time dramatically without affecting any app's functionality.

How to disable startup programs in Windows 11

Press Ctrl + Shift + Esc to open Task Manager

Click the Startup apps tab (the speedometer icon on the left rail)

The tab lists every program registered to launch with Windows, along with its impact rating.

Sort by Startup impact to see the heaviest entries first

Focus on high-impact apps you do not use daily.

Right-click any app you do not need at boot and choose Disable

You can still launch the app manually.

Windows 11 / 10Ilmainen kokeilu, ei rekisteröitymistä

Turbo PC Optimizer Turbo PC Optimizer

Turbo PC Optimizer poistaa turhat tiedostot, korjaa rekisterin sotkun ja nopeuttaa hidasta Windows PC:tä yhdellä napsautuksella - kaikki omalla koneellasi, mitään lataamatta.

Spotify registers three startup entries by default (Spotify, Spotify Web Helper, and the crash reporter). Steam launches Steam Client Bootstrapper and Steam Client Service. Google Drive, Dropbox, and Skype each add one entry. Leave Windows Security (SecurityHealthSystray), your audio driver (Realtek HD Audio Manager or equivalent), and laptop touchpad utilities enabled.
Turbo PC Optimizer scans startup entries and background processes in one view. It identifies apps that slow boot and lets you disable them with a single click. You can also speed up boot time without opening Task Manager.

Remove Bloatware and Preinstalled Apps

TL;DR

Windows 11 ships with preinstalled apps like Clipchamp, Solitaire, and TikTok. These trial apps consume disk space and occasionally run background processes. Removing them frees resources with zero risk.

Open Settings, go to Apps, then Installed apps. Uninstall anything you have never opened. A stock Windows 11 Home install includes Clipchamp (roughly 180 MB), Phone Link, Microsoft Teams (consumer), Solitaire & Casual Games, and promoted apps such as TikTok or Spotify.

Click the three dots next to an app and select Uninstall. Some built-in apps like Cortana or the old Edge components may not show this option. Leave those alone.
Removing bloatware can reclaim 500 MB to 1 GB. On a 256 GB SSD that is already two-thirds full, the extra space helps Windows manage the swap file and trim operations. A full SSD that starts throwing errors is a separate problem, see corrupted ssd recovery.

Turn Off Background Apps and Services

TL;DR

Background apps consume CPU and RAM even when you are not using them. Turning off the ones you rarely open returns those resources to the apps you actually work in. If you mainly want that headroom for games, dedicated game optimizer software applies the gaming tweaks in one click and lets you undo them.

Windows 11 controls background permissions per app. Go to Settings > Apps > Installed apps. Find an app, click the three dots, then Advanced options. Under Background apps permissions, choose Never.

Not every app shows this toggle. UWP (Universal Windows Platform) apps do. Traditional Win32 apps manage their own background behavior. For those, open Task Manager > Processes and sort by CPU or Memory. Disable background mode in the app's settings or uninstall it if it uses significant resources while idle.
Keep Windows Update, Windows Security, and the Print Spooler on. To reduce telemetry, see how to turn off Windows tracking. Disabling core services can leave users with broken printers and stalled updates.

If downloads crawl on a fast connection, see increase download speed windows 11. Windows Update's Delivery Optimization service can claim your bandwidth.

Clean Up Disk Space and Temp Files

TL;DR

Temp files, browser caches, and old Windows update data fill the drive with useless bytes. A cluttered disk slows file operations and leaves less room for the swap file Windows needs when RAM runs low.

Windows stores temporary data in the user Temp folder, browser caches, Windows Update cleanup, and thumbnail caches. Each can reach hundreds of megabytes. Microsoft Support recommends freeing disk space to improve PC performance. Tom's Guide points out that clearing this data can reclaim disk space and responsiveness.

Open Settings > System > Storage > Temporary files. Check the boxes and click Remove files. Browsing, installing updates, and running apps regenerate temp data within days.
SoftOrbits System Cleaner scans for junk files across the system, including temp folders and browser history caches. It also cleans leftover installer data, Windows error reports, and registry entries that point to deleted files. Set it once for automatic cleanup.

Manual cleanup works for a one-time fix. For ongoing maintenance, automatically clean temp files without repeating the routine every week.

Enable Storage Sense for Automatic Cleanup

TL;DR

Storage Sense is a built-in Windows 11 feature that automatically deletes temp files and empties the Recycle Bin on a schedule. It runs silently and needs no third-party software.

Enable Storage Sense in Windows 11

Open Settings > System > Storage

Turn on the Storage Sense toggle at the top

Click Storage Sense to configure it

Set Run Storage Sense to Every week or Every month

Weekly suits active users. Monthly suits light browsing.

Under Delete files in my recycle bin, choose 30 days

Files older than 30 days in the Recycle Bin will be deleted automatically.

Storage Sense skips browser caches, third-party app temp data, and the Windows.old folder left after major updates. It covers the Recycle Bin, Downloads, and system temp folders after the initial toggle.

Reduce RAM Usage and Free Memory

TL;DR

Windows 11 uses more RAM at idle than Windows 10. Identifying the heaviest memory consumers in Task Manager and closing or disabling them returns usable RAM to the apps you actually need.

Open Task Manager with Ctrl + Shift + Esc, switch to Processes, and sort by Memory. Chrome with a dozen tabs can consume 2 to 4 GB of RAM. Electron-based apps like Discord and Microsoft Teams use separate Chromium renderer processes. Slack does the same, and three Slack windows can push 1.2 GB of RAM.

Close tabs and windows you are not using. Disable browser extensions you have not used in the past month.
Discord in a browser tab uses roughly 200 MB less RAM than the standalone Discord app because the browser shares one Chromium engine across tabs.
Keep Memory integrity under Windows Security > Device security > Core isolation on. It uses a small amount of extra RAM for virtualization-based protection.

Set Power Plan to High Performance

TL;DR

The default Balanced power plan throttles the CPU to save energy. Switching to Best performance removes that throttle and makes the system respond faster, especially on laptops.

Microsoft moved the power plan dropdown into Settings in Windows 11 22H2. PCMag notes that changing the power plan is an effective quick fix.

Set power plan to Best performance

Open Settings > System > Power & battery

Find Power mode

Change it from Balanced to Best performance

The CPU will run at higher clock speeds. On a laptop, battery life decreases.

On a desktop PC, this has a small effect because the CPU rarely throttles under Balanced mode when plugged in. On a laptop, apps open faster and multitasking feels smoother. For batch image work, see how to resize multiple images in Windows 11 using optimized settings.

For older Control Panel power plans, type "power plan" in the Start menu and open Choose a power plan. The High performance plan may be under Show additional plans.

Disable Visual Effects and Transparency

TL;DR

Transparency and shadow effects use GPU resources on every window interaction. Animations add CPU overhead. Disabling these makes the interface feel snappier, especially on older hardware.

Rounded corners, mica backgrounds, fade animations, and the transparent taskbar make the GPU composite extra layers whenever you open, close, or resize a window. On a modern discrete GPU (anything from the GTX 1650 onward) this overhead is negligible. On integrated graphics or a laptop from 2019-2020 with Intel UHD 630, disabling these effects frees measurable frame time. How-To Geek lists transparency and visual effects among the settings with the biggest difference.

Turn off transparency and animation effects

Open Settings > Accessibility > Visual effects

Turn off Transparency effects

This removes the frosted-glass look from the taskbar, Start menu, and window borders.

Turn off Animation effects

Windows will snap between states instead of fading or sliding.

For deeper control, press Win + R, type `sysdm.cpl`, and press Enter. Go to the Advanced tab, click Settings under Performance, and select Adjust for best performance. You can also uncheck individual effects. Keep Smooth edges of screen fonts enabled, because text looks rough without it.

On a machine from 2019 or earlier, Windows snaps instead of fading and menus appear instead of sliding.

Manage Windows Search Indexing

TL;DR

Windows Search indexes files in the background so searches return instantly. On large drives or older hardware, the indexing process itself consumes enough disk and CPU to slow everything else down.

Windows 11 indexes Documents, Desktop, and Pictures by default. The indexer (searchindexer.exe) updates whenever files change. On a mechanical HDD with a large photo library or code repository, it can pin disk usage at 100% for minutes after a batch of changes.

Open Settings > Privacy & security > Searching Windows. Classic indexes libraries and desktop. Enhanced indexes every file on every drive. If Enhanced causes disk activity spikes, switch to Classic.
To pause indexing, open Indexing Options from the Start menu and click Pause. Indexing resumes automatically after the pause expires.

If you rarely use Windows Search and prefer Everything by voidtools, disabling indexing stops background disk writes, especially on mechanical drives.

Speed Up Windows 11 for Gaming

TL;DR

Game Mode and GPU scheduling are two built-in Windows 11 features that redirect system resources toward the active game and reduce input latency.

Game Mode deprioritizes background tasks and pauses Windows Update downloads while a game runs. Open Settings > Gaming > Game Mode and turn it on.Hardware-accelerated GPU scheduling moves frame management from the CPU to the GPU. Open Settings > System > Display > Graphics > Change default graphics settings, turn on Hardware-accelerated GPU scheduling, and restart.

Variable refresh rate in the same Graphics settings panel smooths frame delivery and reduces tearing if your monitor supports it.
Close browsers with open tabs before launching a game. Chrome alone can hold 2-3 GB of RAM. Discord and Spotify have system tray minimize options. Close OBS and streaming overlays unless you are actively broadcasting.

Pitfalls When Trying to Speed Up Windows 11

TL;DR

Some popular "speed up Windows 11" advice actually makes things worse. Registry cleaners can delete entries your apps still need. Third-party RAM boosters slow down the exact apps they claim to speed up. Disabling critical services leaves you exposed to malware and broken printers. And skipping updates means missing driver fixes that prevent slowdowns in the first place.

✔️ Registry cleaners.

Orphaned registry entries take up a few kilobytes and do not slow Windows down. A cleaner can delete an entry an active program needs, causing broken audio drivers or Start menu issues. On r/WindowsHelp, users report these problems from aggressive registry cleaning. SoftOrbits System Cleaner targets only entries verified safe to remove.

✔️ Disabling critical services.

Some guides suggest disabling 15-20 Windows services, including Windows Update, Windows Defender, and the Print Spooler. Disabling Windows Update leaves you without security patches within days of a new CVE being published. Disabling Defender removes real-time malware scanning. r/techsupport users report broken printing and stalled Windows Store downloads after blindly disabling services. The CPU savings are near zero.

✔️ Third-party RAM boosters.

These tools force Windows to flush cached data to the page file (pagefile.sys on your system drive). Cached DLLs, font tables, and recently used executables leave fast RAM for the SSD or HDD. Opening them again costs 50-100 ms on an SSD and several seconds on an HDD. The Windows memory manager has handled working sets correctly since Vista. If you need more RAM, buy a stick of RAM.

✔️ Ignoring Windows Update.

Pausing updates for a week before a deadline is fine. Running six months behind means missing driver patches, .NET runtime updates, and security fixes. Threads on r/windowshelp link outdated drivers and unpatched services with background errors and retries. Set Active Hours in Windows Update settings so patches install on your schedule.


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Frequently Asked Questions

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Windows 11 running slow? These proven settings and fixes speed up boot, reduce lag, and free up resources. Step-by-step, no snake oil.
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Yes. A restart clears accumulated temp data, resets memory allocations, and stops stuck background processes. If your PC feels sluggish and you have not restarted in several days, a reboot often helps immediately.

Microsoft lists 4 GB as the minimum, but 8 GB is the practical minimum for everyday use. For multitasking with a browser and office apps, 16 GB keeps everything responsive without constant swapping to disk.

Disabling non-essential services like Connected User Experiences or Fax is safe. Disabling core services such as Windows Update, Windows Defender, or RPC will break functionality. Only disable services you understand and do not need.

Once a week is a good cadence for most users. Heavy browser users or developers who generate large build caches may benefit from cleaning every few days. Storage Sense handles the basics automatically between manual cleanups.

No. Windows 11 gives you EFS encryption bound to your account and BitLocker for a whole drive, and neither asks anyone for a password when a folder is opened. To put a password on a folder, use a separate tool that can put a password on a folder in Windows 11.

On modern hardware with an SSD and 8 GB or more RAM, Windows 11 performs about the same as Windows 10. On older hardware, higher baseline memory usage and additional visual effects can make Windows 11 feel slower. Most Windows 11 optimization guides reach a similar conclusion.

Sources

  • Microsoft Support Official tips to improve PC performance in Windows
  • PCMag Proven fixes to make Windows 11 lightning fast
  • Computerworld How to speed up Windows 11
  • How-To Geek Hidden Windows 11 settings for faster performance
  • Tom's Guide How to speed up Windows 11
  • Beebom How to speed up Windows 11 and improve performance