Windows · Office · Apps troubleshooting
When your PC acts up, start here.
Type the error code or describe what went wrong. Every guide starts with the safest fix first and tells you exactly when to move on to the next step.
C:\> sfc /scannow
Verification 100% complete.
! found corrupt files, repaired some
C:\> DISM /Online /Cleanup-Image /RestoreHealth
[==========100.0%==========]
✓ The restore operation completed successfully.
C:\> _
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Latest fixes
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Microsoft Store missing in Windows 11 or 10? How to get it back
Microsoft Store missing from Windows 11 or 10? Check whether it’s only unpinned, reinstall it with wsreset -i, re-register it with PowerShell,…
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Windows 10 slow boot: how to find the cause and fix it
Windows 10 slow to boot? Measure where the time goes, disable startup apps, toggle Fast Startup, check the drive, find a slow…
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Windows Security not opening in Windows 11? 7 fixes that work
Windows Security won’t open in Windows 11? Repair or reset the app, re-register it with PowerShell, check the Security Center service, remove…
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Error code 0xc0000428: how to fix “Windows cannot verify the digital signature”
Fix boot error 0xc0000428 in Windows 11 and 10: start once without signature checks, remove the driver named in the error, run…
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“Your version of Windows has reached the end of service”: how to fix it
Seeing “Your version of Windows has reached the end of service”? Here’s what it means, which Windows 11 versions are affected, and…
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HP Envy 4500 driver for Windows 11 and 10: download and install
Where to get the HP Envy 4500 driver for Windows 11 and 10, how to install the full software, the Windows driver…
How every guide is built
01 / THE EXACT PROBLEM
We start from the error message or symptom you actually see, and explain what causes it in plain words.
02 / SAFEST FIX FIRST
Quick, low-risk steps come first. Anything that changes system settings comes later, with a warning.
03 / WHERE IT APPLIES
Each guide says which Windows or app versions it covers, so you don’t follow steps meant for a different system.
04 / KEPT CURRENT
When Windows or Office changes, guides are reviewed and the update date is shown at the top.