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PC Error Repairs
Decode Windows error messages, application failures and common system error codes.
Explore error repairs →Windows PC repair knowledge centerUnderstand the problem.
Understand the problem.
Repair your PC.
Clear, practical Windows PC repair guides for error messages, missing DLL files, blue screens, startup failures, driver problems and slow computers.
Step-by-step guidanceWindows focusedSafety-first repairs
Built for everyday Windows usersWindows 11 repair guidanceError-code explanationsSafe troubleshooting orderPlain-English instructions
Browse by repair type
What does your PC need help with?
Start with the symptom you see. Each repair hub explains likely causes, safe first steps and when deeper repair may be necessary.
DLL
DLL Error Repairs
Fix missing, corrupted and incompatible DLL errors without unsafe file downloads.
Explore DLL repairs →⊞
Windows PC Repairs
Repair startup, update, system-file and operating-system problems in Windows.
Explore Windows repairs →↗
Slow PC Repairs
Find the causes of sluggish startups, freezing, high resource use and poor performance.
Speed up your PC →BS
Blue Screen Repairs
Understand stop codes and troubleshoot drivers, memory, storage and system damage.
Explore BSOD repairs →⚙
Driver Repairs
Safely update, reinstall and roll back display, audio, network and device drivers.
Explore driver repairs →Featured repair guides
All repair guides →Start repairing with confidence
Our guides begin with diagnosis, explain the risk of each repair, and put the safest options first.
PC
Complete guide
PC Repair Guide: Fix Errors, Blue Screens and Slow Performance
A practical starting point for diagnosing the most common Windows PC problems.
Read the guide →DLL
DLL repair
How to Fix DLL Errors Safely in Windows
What missing DLL messages mean and the repairs to try first.
Read the guide →:(
Blue screen
Blue Screen of Death: Causes and Safe Fixes
Use the stop code and recent changes to narrow down the cause.
Read the guide →A safer repair process
Diagnose before you change anything
Random fixes can create new problems. Follow a logical repair order and protect your files first.
Identify the symptom
Record the exact error, stop code, affected application and when the problem began.
Protect important data
Back up irreplaceable files before attempting repairs involving disks or system files.
Try the safest repair
Begin with reversible steps, built-in Windows tools and trusted manufacturer sources.
Verify the result
Restart, reproduce the original problem and confirm the repair did not create side effects.