Windows Troubleshooting
Windows 11, Windows 10 and Windows Server troubleshooting guides covering system errors, Start menu problems, applications, Remote Desktop and common Windows issues.
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Windows • PowerShell • CMD • Printers • Mobile
UniTech LK Troubleshooting Guides
Practical step-by-step troubleshooting guides for Windows, PowerShell, Command Prompt, storage, security, printers, Microsoft Office, WhatsApp and mobile devices.
Find the problem you are trying to solve, open the relevant troubleshooting category and follow the guide.
Browse Troubleshooting Categories
PowerShell
PowerShell commands and troubleshooting guides for Windows administration, networking, storage, security, processes, services and Microsoft Defender.
PowerShell GuidesWindows CMD
Command Prompt guides covering Netstat, system information, serial numbers, networking and Windows troubleshooting commands.
CMD GuidesWindows Storage
Diagnose C drive space problems, hidden storage, large files, WinSxS, disk usage and Windows storage problems.
Storage GuidesWindows Security
Microsoft Defender, malware investigation, suspicious network connections and Windows security troubleshooting.
Security GuidesPrinter Troubleshooting
Windows printer drivers, Canon printer errors, ink absorber problems and printer troubleshooting tutorials.
Printer GuidesMicrosoft Office
Microsoft Word, OneNote, Excel and Microsoft 365 troubleshooting and productivity guides.
Office GuidesMobile & WhatsApp
WhatsApp, iPhone, Android, mobile compatibility, app updates and mobile troubleshooting guides.
Mobile Guides100+ PowerShell Commands A-Z
Browse the UniTech LK PowerShell command reference for Windows administration, networking, DNS, storage, processes, services, files, security and Microsoft Defender.
Open PowerShell Command LibraryFeatured Windows Troubleshooting Guides
PowerShell Storage Analysis
Find large files and folders and investigate what is consuming C drive space.
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Microsoft Defender PowerShell
Run Defender scans, update security intelligence and investigate detected threats.
Read GuideC Drive Full But No Files?
Investigate hidden files and unexpected Windows storage usage when the C drive appears full.
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Find What Is Taking Up C Drive Space
Use TreeSize to identify large files and folders consuming Windows disk space.
Read GuidePrinter Troubleshooting
Printer Driver Won't Delete in Windows 11
Troubleshoot stuck Windows printer drivers and remove problematic printer software.
Read GuideCanon G3416 P07 / 5B00 Error
Learn about Canon P07 and 5B00 errors, the waste ink absorber system and printer servicing.
Read GuideMicrosoft Office Guides
Office Error 30179-28
Troubleshoot Microsoft Office installation problems caused by insufficient disk space.
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Copy Text from an Image with OneNote
Use OneNote OCR to extract text from JPG images.
Read GuideTranslate a Word Document
Learn how to translate documents using Microsoft Word.
Read GuideConvert PDF Tables to Excel
Learn how to move table data from PDF documents into Excel.
Read GuideCMD & Command Prompt Guides
Find Your Computer Serial Number
Find your computer serial number using Windows command-line tools.
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CMD + Netstat Network Investigation
Inspect active connections, listening ports and process IDs when investigating suspicious network activity.
Read GuideWhatsApp & Mobile Guides
WhatsApp Stop Working on Old iPhones?
Check iOS compatibility and WhatsApp support requirements for older iPhones.
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WhatsApp Username Update
Learn about WhatsApp usernames and feature availability.
Read GuideMore Windows Guides
About UniTech LK
UniTech LK publishes practical technology troubleshooting guides designed to help users understand and solve Windows, PowerShell, Command Prompt, printer, Microsoft Office, security, storage and mobile problems.
New troubleshooting guides are added as new problems, updates and solutions are tested.