Practical Windows guides

Understand a file or a finding before changing it. These guides cover common Windows workflows, with examples, verification steps and the limits worth checking.

Published by ALMARFELD. Find the tools and their current requirements in the Software catalog.

• Downloads and trust

  How to Verify a Download with SHA-256 on Windows

  Check a downloaded file with PowerShell or certutil, compare the published SHA-256 and understand the limits of integrity verification.

• Signed documents

  How to Open and Inspect a P7S File on Windows

  Identify attached and detached P7S signatures, inspect signers, extract embedded content and interpret integrity and trust results separately.

  P7S Universal Viewer →

• Data files

  How to Diagnose a Broken CSV File Before Opening It in Excel

  Review delimiters, encoding, quoting and uneven rows before importing CSV data, while protecting original files and identifier text.

  CSV Doctor →

• PDF workflows

  How to Merge, Split and Reorganize PDF Files Offline on Windows

  Plan and verify PDF page operations locally: combine documents, select ranges, reorder pages and handle protected or advanced files carefully.

  PDF Toolbox →

• File privacy

  How to Remove Metadata Before Sharing Files

  Inspect photos and documents, work on sharing copies and verify metadata removal without mistaking it for anonymity or secure PDF sanitization.

  MetaClean →

• Windows maintenance

  How to Review Leftovers After Uninstalling a Windows Application

  Review missing-file evidence, Startup and registry references conservatively, using manual selection and reversible quarantine instead of blind deletion.

  App Cleanup Doctor →

• Signed documents · Quick reference

  Opening a P7S File: Quick Reference

  A shorter reference for opening P7S containers, extracting content and interpreting common verification results.

  P7S Universal Viewer →