Troubleshooting articles 9 / 9

152 articles covering known issues and general troubleshooting. Search by product or symptom to narrow the list.

▦Windows power managementTroubleshooting guide

Hibernate is missing from the power menu.

Windows 11 (confirm the edition and hardware requirements for the feature)powercfg

Checked 2026.09.05Read guide ↗

▦Windows optional features / DISMTroubleshooting guide

Adding a Windows optional feature fails because source files are missing.

Windows 11 (confirm the edition and hardware requirements for the feature)0x800f081f

Checked 2026.09.05Read guide ↗

▦Windows InstallerTroubleshooting guide

Resolve Windows Installer error 1618: another installation is running.

Windows 11 (confirm the edition and hardware requirements for the feature)1618

Checked 2026.09.05Read guide ↗

▦Windows InstallerTroubleshooting guide

Windows Installer error 1601: service cannot be accessed.

Windows 11 (confirm the edition and hardware requirements for the feature)1601

Checked 2026.09.05Read guide ↗

◫Adobe Acrobat / Acrobat ReaderTroubleshooting guide

A PDF looks readable on screen but prints blank

Acrobat / Acrobat Reader on Windows 11. These steps use the desktop app, not a browser's built-in PDF print dialog.

Checked 2026.09.12Read guide ↗

◫Adobe Acrobat / Acrobat ReaderTroubleshooting guide

Saving a PDF reports access denied or insufficient permission

Acrobat / Acrobat Reader on Windows 11. Windows Security instructions apply when the relevant Microsoft Defender feature is in use.

Checked 2026.09.12Read guide ↗

◫Classic OutlookTroubleshooting guide

PDF, Word, or Excel attachments will not preview

Classic Outlook for Microsoft 365 / 2024 / 2021 on Windows 11. New Outlook uses different menus and preview behavior.

Checked 2026.09.12Read guide ↗

◫Rocket LeagueTroubleshooting guide

Rocket League cannot communicate with Epic Online Services

Rocket League for PC on Windows 11. Console time and network settings require that platform's official instructions.Error 71

Checked 2026.09.12Read guide ↗