Windows 10/11 Optimization: 15 Proven Tweaks to Boost Speed

Introduction / Why This Is Needed

System tweaks (optimizations) are a set of Windows settings that help reduce the load on the CPU, RAM, and disk subsystem. They are especially useful for computers with medium or low specifications, as well as for those who want to achieve maximum system responsiveness. This guide compiles 15 proven methods to speed up Windows boot, reduce background activity, and improve overall performance. All changes are safe and reversible.

Requirements / Preparation

Before you begin, ensure that:

• You have Windows 10 (version 1903 or newer) or Windows 11 installed.
• You are logged in with administrator privileges.
• A restore point has been created (mandatory!). Open "Control Panel" → "System and Security" → "System" → "System Protection" → "Create". This allows you to roll back changes if issues arise.

Step 1: Disabling Autostart

Autostart is one of the main "resource eaters" during system startup. Every program that launches automatically slows down boot time and runs in the background.

1. Open Task Manager (press Ctrl+Shift+Esc or Ctrl+Alt+Delete → "Task Manager").
2. Go to the "Startup" tab.
3. For each unnecessary program (e.g., messengers, cloud storage, game launchers), right-click → "Disable".
4. Do not disable programs related to antivirus, device drivers, or system components (e.g., "Realtek HD Audio Manager" if you use a Realtek audio card).

Additionally: Clean the startup folders. Press Win+R, type shell:startup and delete shortcuts of unwanted programs from the opened folder. Similarly for the common startup folder: shell:common startup.

Step 2: Configuring Visual Effects

Animations, transparency, and shadows look nice but consume GPU and CPU resources.

1. Press Win+Pause (or Win+Break) to open System. Or open "Control Panel" → "System and Security" → "System".
2. On the left, select "Advanced system settings".
3. In the "System Properties" window, go to the "Advanced" tab.
4. Under "Performance", click "Settings".
5. Select "Adjust for best performance" (disables all effects). Or manually uncheck:
   • "Animate windows when minimizing and maximizing"
   • "Show shadows under windows"
   • "Enable transparent glass" (or "Aero glass")
   • "Smooth edges of screen fonts"
6. Click "Apply" → "OK".

Tip: You can also disable transparency via "Windows Settings" (Win+I) → "Personalization" → "Colors" → turn off "Transparency effects".

Step 3: Managing Windows Services

Many system services run in the background even when not needed. Disabling them frees up RAM and CPU time.

1. Press Win+R, type services.msc and press Enter.
2. In the services list, find the following (you can sort by "Status"):
   • "Windows Modules Installer" — if you don't use automatic update installation.
   • "Font Cache" — can be disabled if you don't experience font rendering issues.
   • "Print Spooler" — if you don't have a printer.
   • "Windows Search" — disable if you don't use file search (but then Start menu search will only work for program names).
   • "Windows Firewall" — do not disable! This is a security risk.
3. For each service, right-click → "Properties".
4. Change "Startup type" to "Disabled".
5. Click "Stop" if the service is running.
6. Click "Apply" → "OK".

Important: Do not disable services with "Windows", "Security", "Update", "Firewall", or "Plug and Play" in their name. If unsure — search for the service description online.

Step 4: Disk Cleanup and Temporary Files

Temporary files, caches, and old updates can occupy gigabytes of space and slow down disk performance.

1. Press Win+R, type cleanmgr and press Enter.
2. Select the system drive (usually C:).
3. In the list, check:
   • "Temporary files"
   • "Windows Update Cleanup"
   • "Temporary Internet Files"
   • "Recycle Bin" (if nothing important is inside)
   • "Previous Windows installations" (if present)
4. Click "OK" → "Delete Files".
5. Additional manual cleanup:
   • Open Win+R, type %temp% and delete all files inside (some may be locked — skip them).
   • Go to C:\Windows\Temp and delete contents (administrator rights required).
   • Clear browser caches (Chrome, Firefox, Edge) via their settings.
6. To delete old memory dump files (.dmp files in C:\Windows\Minidump), use the WinDirStat utility or do it manually.

Step 5: Configuring Power and Disk Settings

Power Plan

1. Open "Control Panel" → "Hardware and Sound" → "Power Options".
2. Select "High performance" (if not present, create one: "Create a power plan" → "High performance").
3. Click "Change plan settings" → "Change advanced power settings".
4. Under "Hard disk" → "Turn off hard disk after", set to "Never" for both "On battery" and "Plugged in".
5. Under "USB settings" → "USB selective suspend setting", disable.

Disk Settings (for HDD)

1. Open "This PC", right-click drive C: → "Properties".
2. Go to the "Hardware" tab → "Properties" → "Policies" (or "Advanced").
3. Under "Performance", ensure "Enable write caching" is checked (usually enabled by default). Not needed for SSD.

For SSD: Ensure in "Power Options" → "Advanced power settings" → "Hard disk" → "Turn off hard disk" is set to "Never" to avoid unnecessary unloads.

Step 6: Additional Optimizations

Disabling Telemetry and Background Apps

1. Press Win+I → "Privacy & security" → "Background apps".
2. Turn off all apps that shouldn't run in the background.
3. For deeper telemetry disabling (Windows Pro/Enterprise only):
   • Press Win+R, type gpedit.msc.
   • Navigate: "Computer Configuration" → "Administrative Templates" → "Windows Components" → "Data Collection and Preview Builds".
   • Enable "Allow Telemetry" and set to "0 - Security Security Only".
   • Also enable "Disable Windows Consumer Experience" and "Disable Windows Error Reporting".

Paging File Optimization

Windows usually manages the paging file automatically, but for systems with low RAM (4-8 GB), you can set a fixed size.

1. Open "Advanced system settings" (as in Step 2) → "Advanced" tab → "Performance" → "Settings" → "Advanced" tab.
2. Under "Virtual memory", click "Change".
3. Uncheck "Automatically manage paging file size".
4. Select drive C: (or another fast drive) → "Custom size".
5. Set:
   • "Initial size": 1.5 × RAM amount (e.g., for 8 GB RAM = 12288 MB)
   • "Maximum size": same as initial.
6. Click "Set" → "OK". Restart the computer.

Defragmentation (HDD only)

For solid-state drives (SSD), defragmentation is unnecessary and even harmful. For HDD:

1. Press Win+R, type dfrgui and press Enter.
2. Select the HDD → "Optimize". Repeat monthly.

Disabling Search Indexing

If you don't use Windows Search, disable indexing:

1. Open services.msc (as in Step 3).
2. Find "Windows Search" (WSearch) → stop and set startup type to "Disabled".

Verifying Results

After applying all tweaks, restart your computer. Then check:

• Boot time: time from power-on to desktop appearance (should reduce by 20-50%).
• Responsiveness: open several programs, switch between them — system should react faster.
• Background load: open Task Manager (Ctrl+Shift+Esc) → "Processes" tab. Ensure no processes with high CPU usage (except system ones) and overall memory usage has decreased.
• Performance tests: run the built-in "System Assessment" (Win+R → winsat formal) or third-party utilities (e.g., CrystalDiskMark for disk, CPU-Z for CPU).

Potential Issues

System becomes unstable or fails to boot

• Solution: Boot into Safe Mode (hold Shift while clicking "Restart" in Start menu → "Troubleshoot" → "Advanced options" → "Startup Settings" → "Restart" → select "Safe Mode").
• In Safe Mode, open systempropertiesprotection and restore the restore point created before tweaks.

Printer or other device stops working

• If you disabled Print Spooler, re-enable it via services.msc.

Start menu search doesn't work

• If you disabled "Windows Search", re-enable it. Or use search via File Explorer (Win+E → top-right search box).

Errors when disabling services

• Don't disable services used by other programs. If something stops working after disabling a service, revert it to its original state.

Overheating or noise

• After disabling some services or optimizations, the system may behave unstably. If you notice increased resource usage, roll back changes.

Questions about specific tweaks

• If unsure about a setting's safety, skip it. Better fewer tweaks with guaranteed stability.

Reminder: All changes are reversible. Follow recommendations and don't disable unknown services.