Fix blue screen (BSOD) | Windows help
A stop error interrupts Windows suddenly. The error code and recent changes often point the way. This guide walks you through common fixes step by step. If it does not work or you prefer professional help, Leftclick AG in the Basel region is here for you.
Step by step
- 1
Note the error code
Write down the stop code like IRQL_NOT_LESS_OR_EQUAL or MEMORY_MANAGEMENT or take a photo.
- 2
Undo recent change
Uninstall recently added drivers, updates or programs via Safe Mode.
- 3
RAM test
Run Windows Memory Diagnostic: Windows+R, mdsched.exe, restart and test.
- 4
Check system files
Open Command Prompt as administrator and run sfc /scannow.
When DIY is not enough
If these steps do not help, you are unsure, or several devices in your business are affected, Leftclick AG can take over troubleshooting. We work via remote support or on-site in the Basel region and find the root cause without guesswork.
FAQ
- Is the initial consultation free?
- We briefly clarify the issue by phone and honestly tell you whether a DIY fix is enough or professional help makes sense.
- Do you support business PCs too?
- Yes. We support SMEs in Basel-Stadt and Basel-Land with managed IT, support and security from a single team.