Windows Settings to Change Before Restarting Your PC

A slow or unreliable Windows PC does not always need another restart: a few targeted settings checks can address common causes such as too many startup apps, low storage, or an inefficient power mode. Start with the steps below, changing one thing at a time; restarting is still necessary for some updates and configuration changes, but it is not a substitute for diagnosing the cause.

Why a restart is not always the fix

Restarting closes running programs and reloads Windows, which can clear a temporary software hang. It does not usually remove the reason the problem keeps returning. If a computer feels slow every time it starts, for example, an app that launches automatically may be consuming memory and processor time again after every reboot. If a drive is nearly full, restarting does not create lasting free space.

First identify what is actually wrong. Is startup slow, is one app freezing, does the computer run out of space, or is performance poor only on battery? Those symptoms point to different settings. Avoid changing several options at once: otherwise, it becomes difficult to tell what helped or caused a new issue.

1. Review apps that start with Windows

Too many startup apps can make sign-in slower and leave background processes running. In Windows 11, open Settings > Apps > Startup. In Windows 10, use Settings > Apps > Startup where available, or open Task Manager > Startup. Task Manager also shows the startup impact for many apps.

1. Look for apps you recognize and do not need immediately after signing in.
2. Turn off only those you understand, such as a launcher or helper you can open manually later.
3. Leave security software, device utilities, and anything whose purpose is unclear enabled until you identify it.

Disabling an app from startup does not uninstall it. You can still open it when needed, and you can re-enable it if a feature stops working. Do not treat every item marked “high impact” as unnecessary; impact describes startup load, not whether the app is safe to disable.

2. Check storage and temporary files

Windows and applications need free space for updates, temporary files, and normal work. Open Settings > System > Storage to see what is using space. The available cleanup options and their names can vary slightly by Windows version and configuration.

• Review temporary files before removing them. Check the categories carefully, especially Downloads, which can contain files you intended to keep.
• Uninstall applications you no longer use through Settings > Apps > Installed apps (or Apps & features in some Windows 10 layouts).
• Move personal files to another suitable drive or storage location only after confirming the copies are complete.
• Consider Storage Sense for routine cleanup, but review its settings so you know what it may remove and when.

There is no single free-space number that guarantees good performance on every PC. The drive type, installed applications, update needs, and workload all matter. Avoid deleting unfamiliar folders inside Windows or Program Files to reclaim space; use Windows cleanup tools or an app’s uninstaller instead.

3. Choose a power mode that suits the task

On a laptop, a battery-saving mode can limit performance to extend battery life. If the PC feels sluggish while plugged in, check Settings > System > Power & battery in Windows 11, or Settings > System > Power & sleep and related power settings in Windows 10. Available choices depend on the device and its manufacturer.

Choose a performance-oriented mode when you need responsiveness and the computer is plugged in; choose a more efficient mode when battery runtime matters more. Higher performance can increase power use and heat, and may make fans louder. A power setting will not fix a failing drive, an overloaded app, or a hardware limitation. If the mode control is missing, the device may manage it through manufacturer software or a particular power plan.

4. Install updates and check the app causing trouble

Updates can fix bugs and improve compatibility, but they can also require a restart to finish. Open Settings > Windows Update, check for updates, and read any prompts before proceeding. Save work first. If Windows says a restart is required, schedule it rather than repeatedly postponing it; a restart in this case completes maintenance rather than serving as a generic performance tweak.

If only one program is slow, update that program through its normal update mechanism and check whether it has its own settings for background activity or startup. Close unused tabs and apps, then use Task Manager to see whether a particular process is using unusually high CPU, memory, or disk resources. A high reading can be normal during a scan, file copy, or update, so consider what the PC is doing before ending a task. Do not end unfamiliar system processes simply because their names are unfamiliar.

5. Check notifications, background activity, and display effects

Notifications themselves are rarely the main cause of a slow PC, but reducing distractions can help you focus on the actual issue. Open Settings > System > Notifications and turn off notifications for apps you do not need to hear from. This changes alerts, not the underlying app’s performance.

Some apps can continue background work when they are not open. Background-app controls differ by Windows version and app type; where a control is offered, restrict only apps that do not need to sync or notify you. Also, visual effects are usually a lower priority than startup apps, storage, or a busy process. If you want to try them, search Windows for Adjust the appearance and performance of Windows and select a less elaborate effects setting. Make a note of the original choice so you can restore it.

When a restart is still the right step

Restart after Windows Update requests it, after installing certain drivers or programs, or when an app or service has become stuck and ordinary closing does not help. A restart is also a reasonable first step for a one-off glitch. Use Start > Power > Restart; this is different from simply closing a laptop lid, which may put it to sleep instead.

If the same problem returns, note when it happens and check Task Manager, storage, and the relevant app or device settings. Repeated crashes, unusual disk noises, overheating, or persistent errors deserve more careful troubleshooting than repeatedly changing unrelated settings. Back up important files before attempting major repairs or resets.

Frequently Asked Questions

Will changing these settings make every PC faster?
No. They help when the cause matches the setting—for example, unnecessary startup apps or a restrictive power mode. Hardware limits, a faulty component, or one demanding application may require a different remedy.

Should I disable every startup app?
No. Disable only apps you recognize and do not need at sign-in. Some utilities provide device features or alerts, and security tools should not be switched off casually.

Does Storage Sense delete my personal files?
Its behavior depends on the options you enable. Review the categories and timing in Storage settings, especially any option involving Downloads or cloud-synced files, before turning on automatic cleanup.

Do Windows updates need a restart?
Some do. Follow the restart prompt and save your work first; the restart may be needed to finish installing or applying an update.

What should I check if my PC is still slow?
Use Task Manager to identify unusually busy processes, check available storage, and determine whether the slowdown affects one app or the whole system. If symptoms persist or include repeated crashes, back up important files and seek device-specific troubleshooting.

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