Fix 'Could not get lock /var/lib/dpkg/lock' Error on Ubuntu/Debian
You try to install a package with apt or dpkg, and you get the error: Could not get lock /v...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Download and Install PowerShell 7 on Windows Server
You need PowerShell 7 on Windows Server, but the built-in Windows PowerShell 5.1 is the default. ...
Fix Microsoft Store 404 Not Found After Update
After a Windows update, you might open Microsoft Store and see a 404 Not Found error when trying ...
How to Fix 'Outlook Data File Cannot Be Accessed' Error
You try to open Outlook and get an error: "Outlook data file cannot be accessed." This u...
Fix PowerShell Ubuntu Package Repository Errors
When installing or updating PowerShell on Ubuntu, you might see errors like E: The reposito...
Fix Windows Security Loading Issue with Built-In Repair Tools
If Windows Security (formerly Windows Defender) won't open or gets stuck on a loading screen, the...
Topic paths
Quick titles
Windows Defender Port Already Allocated Fix Guide0x80073cf9 Store Error: Simple FixesTroubleshoot Windows Update Cleanup Not CompletingFix 0x80070422: Windows Update Service Not RunningHow to Fix 'File Locked by Another Program' in Windows SecurityHow to Reactivate Windows After Token ExpirationHow to Fix Windows Defender Port Conflict in Event ViewerTroubleshooting MongoDB Keyfile Authentication Sync Issues