When your computer is slow on startup, Windows may be loading too many apps, working with limited free space, or relying on an older hard drive. Fast Startup issues, pending updates, malware, or outdated drivers can also make the boot process feel slower than usual.
The good news is that you do not need to reinstall Windows right away. A few simple checks can often make your PC boot faster and feel more responsive after you sign in.
This guide walks you through practical ways to speed up Windows startup on both Windows 10 and Windows 11.
Quick answer
To speed up Windows startup, start with these steps:
- Disable unnecessary startup apps.
- Check which apps have a high startup impact.
- Free up disk space.
- Check Fast Startup.
- Scan for malware or unwanted programs.
- Optimize your drive.
- Update Windows and device drivers.
- Upgrade from an HDD to an SSD if your PC still boots slowly.
For many users, disabling startup apps and replacing an old hard drive with an SSD will make the biggest difference.
Computer slow on startup: common reasons
A slow startup can happen for several reasons. Some are related to software, while others are caused by older hardware or background tasks loading with Windows.
Common causes include too many apps opening when Windows starts, security tools running in the background, cloud storage apps, game launchers, updaters, low free storage space, malware, outdated drivers, a slow mechanical hard drive, Windows updates finishing after a restart, or background services loading right after sign-in.
It is also important to separate two different problems. Sometimes the PC takes a long time to reach the sign-in screen. Other times, Windows loads normally, but the desktop feels slow after you enter your password.
The steps below can help with both situations. However, startup apps usually have a bigger effect after you sign in, while storage problems, outdated drivers, malware, or an old hard drive can affect the whole startup process.
Disable startup apps to make Windows boot faster
This is usually the best first step if your PC is slow starting up. Many programs add themselves to the startup list, even if you do not need them every day.
Common examples include chat apps, game launchers, cloud storage tools, printer utilities, app updaters, music apps, manufacturer tools, and browser assistants.
You do not have to uninstall these programs. You can simply stop them from opening automatically when Windows starts.
On Windows 11
Open Settings, go to Apps, select Startup, review the list of apps, and turn off the ones you do not need right away.
Pay special attention to apps marked as having a high startup impact. If you rarely use one of them, disabling it can help Windows feel faster after you sign in.
On Windows 10
Open Settings, go to Apps, select Startup, and turn off unnecessary apps.
You can also use Task Manager. Press Ctrl + Shift + Esc, open the Startup or Startup apps tab, select an app you do not need, and click Disable.
Do not disable your antivirus, audio drivers, touchpad software, or important device utilities unless you are sure they are not needed. Focus first on apps that are convenient but not essential, such as launchers, messengers, and updaters.
Microsoft also explains how to configure startup apps in Windows if you want to compare both methods from Settings and Task Manager.
Check the startup impact in Task Manager
Task Manager can show which apps affect startup the most. This is useful because not all startup apps slow down your PC in the same way.
Some apps may start with Windows but use very few resources. Others can delay the desktop for several seconds after you sign in.
To check this, press Ctrl + Shift + Esc, open the Startup or Startup apps tab, and look at the Startup impact column. If an app is marked as High and you do not need it right away, you can disable it from startup.
Good candidates to disable include game launchers, chat apps, music apps, cloud storage tools, and third-party updaters. You can still open them manually later.
For more ways to access this tool, see our guide on how to open Task Manager in Windows 10 and 11.
Stop apps from reopening after sign-in
Sometimes Windows feels slow after startup because it reopens apps from your previous session. This can be useful, but it can also make the PC feel heavy right after you sign in.
On Windows 11, open Settings, go to Accounts, select Sign-in options, look for the restartable apps option, and turn it off if you do not want Windows to reopen apps automatically.
On Windows 10, you can also check Settings > Accounts > Sign-in options and review the available restart and sign-in options.
This step will not always reduce the time it takes to reach the sign-in screen, but it can help the desktop load faster after you enter your password.
Check Fast Startup in Windows 10 or 11
Fast Startup is a Windows feature designed to help your PC start faster after a shutdown. It works by saving part of the system session so Windows does not have to load everything from scratch the next time you turn on the computer.
To check it:
- Open Control Panel and go to Hardware and Sound > Power Options.
- Click Choose what the power buttons do.
- Select Change settings that are currently unavailable.
- Enable Turn on fast startup if it is available, then click Save changes.
Fast Startup can help some computers boot faster, especially systems that still use older hardware. However, it does not work the same way when you restart the PC. A restart performs a fuller startup cycle.
If your PC has driver problems, update issues, or strange shutdown behavior, you can also test with Fast Startup turned off. On some systems, disabling it can make troubleshooting easier.
Free up disk space when Windows startup is slow
Not having enough free space can make Windows slower during startup and after sign-in. If your system drive is almost full, Windows has less room for temporary files, updates, and background tasks.
A good rule of thumb is to keep at least 15% to 20% of your system drive free when possible.
To free up space, open Settings, go to System > Storage, and review temporary files, installed apps, downloads, and large files. Delete what you no longer need.
You can also turn on Storage Sense to let Windows clean temporary files automatically.
Be careful with the Downloads folder. Many users keep important installers, documents, or images there, so review it before deleting everything.
Scan for malware or unwanted software
If your computer suddenly became very slow on startup, malware or unwanted software could be part of the problem. This is especially worth checking when the computer slow on startup problem appears suddenly on a PC that was working normally before.
Warning signs include unknown programs opening by themselves, browser pop-ups, search engine changes, high CPU usage after startup, strange background processes, or new apps you do not remember installing.
Start with a full scan using Windows Security. Open Windows Security, select Virus & threat protection, choose Scan options, and run a Full scan.
For more details, Microsoft explains the available virus and threat protection options in the Windows Security app.
You can also review your installed apps and remove anything you do not recognize or no longer use.
Optimize your drive
Drive optimization can help, but the right method depends on whether your PC uses a traditional hard drive or an SSD.
If you have a hard drive
A traditional hard drive can become fragmented over time. Windows includes a built-in tool that can analyze and optimize the drive.
To use it, open the Start menu, search for Defragment and Optimize Drives, select your system drive, and click Optimize.
This can help older PCs, especially if they still use a mechanical hard drive.
If you suspect drive errors, you can also check and repair disk errors with CHKDSK before assuming the drive needs to be replaced.
If you have an SSD
Do not treat SSD optimization like traditional defragmentation. Windows handles SSDs differently and uses the proper optimization method for that type of drive.
You can still open Defragment and Optimize Drives and let Windows optimize the SSD, but you do not need to manually defragment it like an old hard drive.
If your computer is still using an HDD, upgrading to an SSD will usually make a much bigger difference than any software tweak.
Microsoft’s guide to optimizing drives in Windows also explains that HDDs and SSDs are handled differently.
Update Windows and drivers
A slow startup can also be related to outdated drivers or pending Windows updates.
To check for updates, open Settings, go to Windows Update, click Check for updates, install any available updates, and restart the PC if needed.
You should also update drivers from your PC manufacturer when necessary, especially for the chipset, storage controller, graphics, BIOS or UEFI firmware, and network adapters. For BIOS or UEFI updates, use only the file provided by your PC manufacturer and follow its instructions carefully.
Before changing drivers or advanced system settings, it is a good idea to create a System Restore point in Windows.
Be careful with random driver updater tools. It is usually safer to get drivers from Windows Update or directly from your PC manufacturer’s support page.
Remove programs you no longer use
Even if a program does not start with Windows, it may install background services, scheduled tasks, or update components that slow the system down.
To review installed apps, open Settings, go to Apps, select Installed apps or Apps & features, and review the list. Uninstall programs you no longer need.
Focus on old utilities, trial software, duplicate antivirus tools, toolbars, and apps installed by mistake.
Do not remove drivers or manufacturer apps unless you know what they do.
Upgrade to an SSD if your PC still boots slowly
If your computer takes a long time to boot and it still uses a traditional hard drive, upgrading to an SSD is one of the best improvements you can make.
An SSD can help Windows boot faster, open apps faster, feel more responsive after sign-in, handle updates better, and reduce delays caused by background tasks.
This is especially noticeable on older laptops and desktops. If your PC has enough RAM and a decent processor, replacing the hard drive with an SSD can make it feel like a much newer machine.
For many slow startup problems, this hardware upgrade can make a bigger difference than disabling apps or changing Windows settings.
What if Windows is still slow after startup?
If you already disabled startup apps, checked Fast Startup, freed up storage, scanned for malware, and updated Windows, but the computer is still slow, try to identify where the delay happens.
Ask yourself:
- Does the PC take too long before the Windows logo appears?
- Does it get stuck at the Windows logo?
- Is the sign-in screen slow to appear?
- Does the desktop load but stay frozen?
- Is the PC slow only after updates?
- Is the hard drive always at 100% usage?
If the delay happens before Windows starts loading, the issue may be related to the BIOS or UEFI settings, boot order, external drives, or hardware.
If the delay happens after sign-in, startup apps, background services, low RAM, or a slow drive are more likely.
You can also open Task Manager after signing in and check the Processes tab. If CPU, memory, or disk usage stays very high for several minutes, that can point you toward the cause.
If Windows still feels unstable or unusually slow, you may also want to check and repair corrupted Windows system files using SFC and DISM.
Should you reset Windows?
Resetting Windows should not be your first option. It can help when the system is damaged or overloaded with old software, but it takes more time and requires preparation.
If the problem started after installing an app, driver, or update, you may want to use System Restore in Windows 10 and 11 before resetting the PC.
Before resetting Windows, try disabling startup apps, removing unnecessary programs, running a malware scan, freeing up storage, updating Windows and drivers, and checking system files.
You should also create a backup of your important files before making major system changes.
If the PC is still slow after trying the previous steps and your files are backed up, a Windows reset may be worth considering.
Final tips
If you are dealing with a computer slow on startup, do not try every possible fix at once. A good order to follow is:
- Disable unnecessary startup apps.
- Check high-impact apps in Task Manager.
- Free up disk space.
- Scan for malware.
- Check Fast Startup.
- Optimize your drive.
- Update Windows and device drivers.
- Consider upgrading to an SSD.
For most users, the biggest improvements come from reducing startup apps and moving from an HDD to an SSD.
FAQ
Your computer may be slow on startup because too many apps open automatically, the system drive is nearly full, malware or unwanted software is running in the background, drivers are outdated, or the PC still uses an older hard drive.
To make Windows 10 startup faster, disable unnecessary startup apps, check Fast Startup, free up disk space, scan for malware, optimize your drive, and remove programs you no longer use.
In Windows 11, go to Settings > Apps > Startup and turn off apps you do not need when Windows starts. You can also check high-impact apps in Task Manager, update Windows, free up storage, and optimize your drive.
Fast Startup can help Windows start faster after a shutdown, but it does not work the same way during a restart. If your PC has startup or shutdown problems, testing with Fast Startup turned off may also help.
A laptop may take forever to boot because of startup apps, low storage, malware, outdated drivers, limited RAM, or a slow hard drive. On older laptops, upgrading to an SSD can make a major difference.
Yes, it is usually safe to disable nonessential startup apps. Avoid disabling antivirus software, touchpad tools, audio services, or important driver utilities unless you know what they do.
