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Why Your Windows PC Takes Forever to Start (and How to Fix It)

October 14, 2026 · LuxuriousComputers Repair, Marion OH

A Windows PC that used to boot in under a minute and now takes three, five, or ten minutes is telling you something. The cause is almost always one of a few things: too many startup programs, a failing or full hard drive, outdated drivers, or Windows itself needing maintenance. Here is how to work through them in order.

Check what is launching at startup

The single most common cause of slow startup is too many programs loading when Windows boots. Every application that starts automatically adds seconds to your boot time, and most people accumulate dozens of them over years of installing software.

1. Press Ctrl + Shift + Esc to open Task Manager
2. Click the Startup tab (in Windows 11, click Startup apps in the left sidebar)
3. Sort by Startup impact. Anything marked High is adding noticeable time to your boot
4. Right-click programs you do not need immediately at startup and select Disable

Safe to disable: cloud storage sync (OneDrive, Dropbox, Google Drive) if you do not need them instantly, Spotify, Discord, Steam, Teams, Skype, Adobe Creative Cloud, printer utilities, and manufacturer bloatware (HP Support Assistant, Dell SupportAssist, Lenovo Vantage). Do not disable your antivirus, audio drivers (Realtek), or Windows Security.

After disabling unnecessary startup items, restart and time the difference. This alone often cuts boot time in half.

Turn on Fast Startup

Windows has a built-in feature called Fast Startup that saves a partial system state to disk when you shut down, so the next boot loads from that saved state instead of starting everything from scratch. It is usually on by default, but software installs or power setting changes can disable it.

1. Open Control Panel, then Hardware and Sound, then Power Options
2. Click Choose what the power buttons do in the left sidebar
3. Click Change settings that are currently unavailable at the top
4. Check the box next to Turn on fast startup
5. Click Save changes

If the option is greyed out or missing, hibernation may be disabled. Open Command Prompt as administrator and run powercfg /hibernate on, then check again.

Note that Fast Startup can occasionally cause issues with dual-boot setups or certain driver updates. If you notice new problems after enabling it, you can always turn it back off.

Check your hard drive health and space

A traditional spinning hard drive (HDD) that is nearly full or developing bad sectors will slow down everything, especially startup. Windows needs free space for virtual memory, temporary files, and updates. A drive below 15 percent free space will noticeably slow down.

Free up space

1. Open Settings, then System, then Storage
2. Turn on Storage Sense to automatically clean temporary files
3. Click Temporary files and delete what you do not need (previous Windows installations can be 20 GB or more)
4. Uninstall programs you no longer use from Apps and Features

Check drive health

Open Command Prompt as administrator and run wmic diskdrive get status. If it returns anything other than OK, your drive may be failing. For more detail, install CrystalDiskInfo (free). A drive with Caution or Bad status should be replaced before it fails completely and takes your data with it.

Upgrade from HDD to SSD

If your computer still has a traditional spinning hard drive, replacing it with a solid-state drive (SSD) is the single biggest speed improvement you can make. An HDD reads data at roughly 100 MB per second. A SATA SSD reads at 500 MB per second. An NVMe SSD reads at 3,000 MB per second or faster.

In practical terms, a Windows boot that takes 90 seconds on an HDD typically takes 15 to 20 seconds on an SSD. The difference is dramatic and immediate. The upgrade involves cloning your existing drive to the new SSD (or doing a fresh Windows install) and physically swapping the drives. Most laptops and desktops made in the last ten years can accept an SSD.

Update Windows and drivers

Pending Windows updates can slow startup because the system is trying to install or prepare updates in the background during boot. Outdated drivers, especially for your storage controller or chipset, can also cause delays.

1. Open Settings, then Windows Update, then Check for updates
2. Install everything pending and restart
3. After restarting, check again, as some updates only appear after others are installed

For drivers, Windows Update handles most of them, but your chipset and storage drivers often work better when downloaded directly from the laptop or motherboard manufacturer (Dell, HP, Lenovo, ASUS, etc.).

Scan for malware

Malware that loads at startup can add significant delay because it is competing for disk and CPU resources during boot. Some malware specifically embeds itself in the startup sequence to ensure it runs before your antivirus can catch it.

1. Open Windows Security, then Virus and threat protection
2. Click Scan options, then select Full scan
3. Let it complete. A full scan can take an hour or more but is more thorough than the default quick scan
4. If Windows Defender finds nothing but you still suspect malware, run a scan with Malwarebytes Free as a second opinion

Clean the Windows boot configuration

Over time, Windows can accumulate broken or orphaned startup entries, scheduled tasks, and services that slow down boot. A clean boot helps identify which services are causing the problem.

1. Press Windows + R, type msconfig, and press Enter
2. On the Services tab, check Hide all Microsoft services
3. Click Disable all to temporarily stop third-party services from loading at boot
4. Restart and check if boot time improves
5. If it does, re-enable services in groups of five to find which ones are causing the delay

This is a diagnostic step. Once you identify the slow service, you can decide whether to uninstall that program, update it, or leave it disabled at startup.

Check your BIOS settings

Your computer's BIOS or UEFI firmware runs before Windows even starts loading. If the BIOS is configured to check for USB boot devices, run memory tests, or wait for network boot, it adds time before Windows begins.

• Enter BIOS setup (usually by pressing F2, Delete, or F12 during the manufacturer logo screen)
• Look for Boot Order and remove USB or network boot options you do not use
• Enable Fast Boot if available (this is different from Windows Fast Startup)
• Make sure your primary drive is first in the boot order

Be careful in the BIOS. If you are not sure what a setting does, leave it alone.

When a fresh install is the answer

If your computer is several years old, has been through multiple major Windows updates, and none of the above fixes help enough, a clean reinstall of Windows can bring boot times back to what they were when the machine was new. Years of software installs, uninstalls, driver changes, and registry entries accumulate into measurable slowdown that no single cleanup can fully reverse.

Back up your files first (documents, photos, browser bookmarks, anything you cannot redownload). A clean install wipes the drive and starts fresh. Combined with an SSD upgrade, it is essentially a new computer for a fraction of the cost.

Slow startup repair in Marion

LuxuriousComputers in Marion diagnoses and fixes slow Windows startup. Whether it is a cluttered startup list, a failing hard drive, or a machine that needs an SSD upgrade, we identify what is holding you back and fix it. If the drive is dying, we can transfer your data to a new one before it fails.