Windows updates frequently get stuck at certain percentages or fail to install. One of the most common issues in Windows 10 and 11.
Solution Steps:
Run Windows Update Troubleshooter: Settings → Update & Security → Troubleshoot
Clear Windows Update cache: stop service with net stop wuauserv, delete C:\Windows\SoftwareDistribution, restart with net start wuauserv
Run sfc /scannow and DISM /Online /Cleanup-Image /RestoreHealth
Retry the update
windows-updatetroubleshootingcommon-issue
User Unable to Access Shared Mailbox
Office 365
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🔧 Difficulty: Easy⏱️ Time: 10 min
Users report they cannot see or access a shared mailbox that has been assigned to them in Office 365.
Solution Steps:
Verify permissions in Exchange Admin Center
Ensure user has "Full Access" permission
Wait 60 minutes for changes to propagate
Have user close and restart Outlook
If not auto-added, add manually: File → Account Settings → double-click account → More Settings → Advanced → add mailbox
office-365exchangepermissions
Network Printer Offline or Not Responding
Networking
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🔧 Difficulty: Easy⏱️ Time: 10–15 min
Network printer shows as offline or jobs get stuck in the print queue.
Solution Steps:
Check printer is powered on and connected to network
Ping printer IP address to verify network connectivity
Clear print queue: stop "Print Spooler", delete C:\Windows\System32\spool\PRINTERS, restart service
Remove and re-add printer if issue persists
Update printer drivers from manufacturer website
printingnetworktroubleshooting
Veeam Backup Job Failing
Backups
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🔧 Difficulty: Medium⏱️ Time: 20–30 min
Veeam backup jobs are failing with various errors or warnings.
Common Causes & Solutions:
Insufficient disk space: Check repository storage capacity
Network connectivity: Verify network path to backup repository
Snapshot issues: Remove old VM snapshots manually
VSS errors: Restart VSS service on VM, update VMware Tools
General Troubleshooting:
Check Veeam job logs for specific error messages
Verify backup repository has sufficient space
Ensure backup proxy and repository services are running
Try running a manual backup to isolate scheduling issues
veeambackupvirtualization
Computer Running Slow
Hardware
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🔧 Difficulty: Easy⏱️ Time: 30–45 min
Computer is running significantly slower than normal, applications take long to open, system freezes occasionally.
Diagnostic Steps:
Check Task Manager for high CPU/Memory/Disk usage
Run Windows Defender full scan
Review and disable unnecessary startup programs
Check disk space — ensure at least 20% free on C:
Run Disk Cleanup to remove temporary files
Check for pending Windows updates
Monitor disk health with CrystalDiskInfo
Consider SSD upgrade if running on HDD
performancehardwareoptimization
Wi-Fi Connection Issues — Intermittent Drops
Networking
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🔧 Difficulty: Medium⏱️ Time: 20–30 min
Wireless connection keeps dropping or shows as connected but no internet access.
Solution Steps:
Restart router and access point — unplug for 30 seconds
Update wireless adapter drivers on client device
Forget and reconnect to Wi-Fi network
Change Wi-Fi channel to reduce interference (1, 6, or 11 for 2.4GHz)
Verify router firmware is up to date
Test with different devices to isolate client vs network issue
Check for IP conflicts or DHCP exhaustion
wirelessconnectivitynetwork
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Quick Tips
▼
💡 Documentation is Key
Always document your solutions. The problem you solve today will likely appear again. Keep notes on fixes, configurations, and lessons learned.
🔄 Restart First
Many issues resolve with a simple restart. Before diving deep into troubleshooting, try restarting the affected service, application, or device.
📋 Check the Basics
Verify the fundamentals: Is it plugged in? Is it powered on? Is the network cable connected? Many "complex" issues have simple causes.
🔍 Search for Error Messages
Search for exact error messages in quotes. Someone has likely encountered and solved the same issue. Microsoft and vendor forums are invaluable resources.
