Windows 11 — The Most Common Problems and How to Fix Them

Windows 11 brought a new design, improved performance, and better security. But like any operating system, it also comes with a set of problems users run into every day. In this article we cover the most common complaints and walk you through practical steps to fix them.

Problem 1: Windows 11 boots slowly

One of the most common questions: "Why does my Windows 11 computer take 5 minutes to load?"

Causes

• Too many programs launch automatically at startup
• "Fast Startup" is enabled, which can sometimes cause issues
• Hibernation and virtual memory are poorly configured

Fixes

• Open Task Manager (Ctrl+Shift+Esc) → the "Startup" tab → disable unnecessary programs
• Open "Settings" → "System" → "Power & battery" → "Additional power settings" → disable "Fast Startup"
• Make sure Windows 11 is up to date (Settings → Windows Update)

Problem 2: Bluetooth and Wi-Fi stop working after an update

Windows 11 updates sometimes "break" wireless connectivity drivers.

Fixes

• Press Win+X → Device Manager
• Find the network adapter or Bluetooth device
• Right-click → "Update driver" → "Search automatically"
• If that doesn't help: uninstall the driver and restart — Windows 11 will reinstall it automatically
• Alternatively: visit the manufacturer's website and download the latest driver manually

Problem 3: Applications won't open or keep crashing

Causes

• Corrupted system files
• Incompatible applications (older programs)
• An issue with Microsoft Visual C++ Redistributable

Fixes

• Open Command Prompt as administrator and run sfc /scannow — it checks and repairs system files
• If the issue is with a specific program, uninstall and reinstall it
• Make sure you have the latest Microsoft .NET Framework and Visual C++ installed

Problem 4: No sound

Sound problems in Windows 11 are a frequent reason for IT support calls.

Diagnostic steps

• Check that the sound isn't muted (the sound icon in the system tray)
• Right-click the sound icon → "Troubleshoot sound problems"
• Open Device Manager → Sound, video and game controllers → check for warning icons
• Make sure the correct device is set as "default" in Settings → System → Sound

Problem 5: The printer disappeared after an update

Windows 11 updates sometimes reset printer settings.

Fixes

• Settings → Bluetooth & devices → Printers & scanners → Add a printer
• If the printer isn't detected automatically, download the driver from the manufacturer's website
• Remove the printer and add it again

Problem 6: The computer overheats under Windows 11

Windows 11 sometimes uses more processor resources than earlier versions, which leads to higher temperatures.

Causes

• The "System" or "Windows Update" process is temporarily using a lot of resources
• Antivirus scanning is running in the background
• The fans are clogged with dust

Fixes

• Open Task Manager and check which processes are consuming resources
• Wait for updates to finish (usually 20-30 minutes)
• Physically clean the fans (recommended once a year)

Problem 7: Errors when updating Windows 11

If Windows Update shows errors and can't install updates:

• Run the Windows Update Troubleshooter (Settings → System → Troubleshoot)
• Clear the Windows Update cache: stop the service with net stop wuauserv, delete the contents of C:\Windows\SoftwareDistribution\Download, then restart it with net start wuauserv
• Try downloading the update manually from the Microsoft Update Catalog

When it doesn't help to go it alone

If the problem persists after these steps, or if you're not sure how to carry them out, you don't have to struggle on your own. Many of these issues require deeper diagnostics and hands-on experience with Windows 11.

SNM Support offers fast remote support — including for Windows 11 problems. Book a session at snmsupport.com and we'll get back to you within hours.