How to Set Up Windows 10 Environment with Amazon WorkSpaces

Standing up a Windows 10 environment on Amazon WorkSpaces because our admin team needed IE11.

[Apache][Windows7] Solution for 'No listening sockets available' Error That Prevents Startup

Fixing Apache's port 80 conflict on Windows 7 by changing Skype's port settings.

Notes on Cross-Platform Computer Use Agents for macOS and Windows — Selection with Hermes Agent and cua-driver as of September 2026

Notes from comparing Computer Use agents that can operate native apps on both macOS and Windows as of September 2026. Among official apps, only the ChatGPT and Claude desktop apps clear the bar of two-OS support plus full-OS control. On the open-source side, Nous Research's Hermes Agent paired with trycua's cua-driver is the strongest starting point, with UI-TARS, Agent S, and Open Interpreter as adjacent candidates. This article focuses on what feature-matrix comparisons tend to hide: the actual scope of the 'no-foreground contract' for background operation, TCC and Accessibility on macOS, UIPI and Session 0 on Windows, multi-monitor limits, and Japanese IME behavior.

[SSH] How to Create a Private Key for Poderosa from a Putty Private Key

A note on using PuTTYgen's Export ssh.com key to convert a Putty .ppk private key into a Poderosa .sshcom private key.

How to Fix Internet Explorer 11 (IE11) Showing Blank Pages on Amazon WorkSpaces

Fix blank pages in IE11 on Amazon WorkSpaces by turning off IE Enhanced Security Configuration.

Internet Explorer has stopped working. A problem caused the program to stop working correctly. The program will be closed and Windows will notify you if a solution is available.

Fixing Internet Explorer crashes on a bank transfer system by clearing the browser cache.

[Mac] How to Configure Not to Create .DS_Store Files

How to stop Mac from creating `.DS_Store` files on Windows network shares.

Domain Names Handled by Microsoft's Free Email Outlook.com

A note on the outlook.jp / outlook.com / hotmail.co.jp / live.jp domains Outlook.com covers, and setting up account aliases.

Obtaining OV/EV Code Signing Certificates from Japan — Eligibility for Companies, Sole Proprietors, and Individuals, with 2026 Pricing

Before "how much does a code signing certificate cost," you have to settle "can I even obtain one." A Japanese company can get one from almost any CA and pick on price, but an individual developer with no registered business is generally not issued one by major CAs, and Microsoft's own cloud signing service excludes Japan geographically. This post leads with eligibility by applicant type and region, then prices, to map out which certificate a Japanese company or a Japan-resident individual can actually obtain in 2026.

[Free Software] Windows App 'PNGGauntlet' for Lossless PNG Image Compression

PNGGauntlet is a Windows freeware tool for lossless PNG compression, useful for web performance.

[SSH][Putty] Permission denied (publickey,gssapi-with-mic). When Trying SSH Public Key Authentication Login

Fixing multi-hop SSH Permission denied errors in PuTTY by enabling Pageant agent forwarding.

[Shell Script] /bin/bash^M: bad interpreter: No such file or directory

`/bin/bash^M: bad interpreter` comes from CR/LF line endings — convert the script to LF to fix it.

[VirtualBox] Installing Guest Additions for Screen Size Changes

Installing VirtualBox Guest Additions on Windows 7 to enable screen size changes.

[VirtualBox] How to Increase Disk Space of Windows7 in Virtual Environment

A memo on how to increase disk space for a Windows 7 guest on VirtualBox.

[VMware Fusion] How to Add Windows Applications to Mac Application Folder

Adding Windows 7 apps to the Mac Applications folder from VMware Fusion 5.

[Virtual OS] Installing CentOS on VMware Player as a Development Server

Installing CentOS 5.6 as a dev server on VMware Player on Windows 7.

VMware Server Installation Steps

A memo on installing VMware Server on Windows 7.

[VMware Server] How to Uninstall

Uninstalling VMware Server by re-running the installer and choosing Remove.

How to Test Windows 10 + Internet Explorer 11 on macOS [VirtualBox Edition]

Set up a Windows 10 + IE11 testing VM on macOS with VirtualBox.

[Windows] How to Uninstall Apache

Steps to uninstall Apache HTTP Server from Windows 7.

[Windows7] How to Set Up English Keyboard

Registry edits to switch Windows 7 to a US English keyboard layout.

[Windows7] How to localize English version to Japanese

Localize English Windows 7 to Japanese via Region and Language settings.

Minimum specifications required for Windows 7 operation

Windows 7 minimum system requirements quoted from Microsoft's official spec.

[Windows7] How to Configure Settings to Use the telnet Command

How to enable the telnet command on Windows 7 — a quick reference note.

Upgrading Windows 7 to Windows 10 (Lenovo G550, Backup, Memory Upgrade)

Upgrading a Lenovo G550 from Windows 7 to Windows 10 and bumping RAM to 8GB.

Windows Admin-Elevated Processes Are Off-Limits to ChatGPT and Codex Computer Use — Where UIPI Draws the Line

Once you actually start using the [ChatGPT desktop app](https://chatgpt.com/download/)'s Computer Use as an AI tester on Windows, you hit a hard wall: no click or keystroke is delivered to any window belonging to an admin-elevated process. The cause is Windows' Mandatory Integrity Control (MIC) and User Interface Privilege Isolation (UIPI), which are designed to prevent a medium-integrity process from sending input to a high-integrity window at the OS level. This article walks through where that boundary sits, which tools it covers, the workarounds available in practice, and what the wall means for placing an AI tester, based on what public documentation confirms.

Windows Code Signing CI Costs by Monthly Signing Volume — What Real Vendor Binaries Reveal in 2026

When you automate Windows code signing in CI, the yearly bill for SSL.com eSigner, DigiCert KeyLocker, and Azure Key Vault + GlobalSign can differ by several multiples depending on your monthly signing volume. The service that is cheapest at 20 signings per month becomes the most expensive at 1,000. And when you verify what major vendors actually ship with osslsigncode, an operational principle emerges that no price sheet reveals on its own: 'fix the entry, refresh the payload.' This post organizes the 2026 CI cost comparison and the operational patterns readable from real vendor binaries.

Distributing a Windows Desktop App Safely from Japan — Code Signing and the SmartScreen Reality (2026)

"I want to distribute a Windows app, but I don't want security software to block it." For a Japanese company, the shortest path to meeting that requirement collapses to roughly two options: ship MSIX through the Microsoft Store, or sign an installer with a CA-issued code-signing certificate and serve it from your own site. But on Windows since 2024, buying an EV certificate no longer buys an instant SmartScreen bypass, and Microsoft's cheap cloud signing service, Azure Trusted Signing, excludes Japanese organizations. We assemble the 2026 realistic path end to end, from certificate selection through signing, distribution, and SmartScreen reputation operations.

Distributing Windows Desktop Apps Through Customer Intune Tenants — A Software Vendor Playbook for Win32, MSIX, Code Signing, and Updates

If your customers use Microsoft Intune, almost every path to their Windows desktops in 2026 leads to the Win32 app format. LOB has narrow scope, Store for Business is gone, and MSIX only fits if your app is container-friendly. The vendor's job is to hand IT a signed MSI, an `.intunewin`, detection rules, ADMX templates, and silent install commands. This post lays out the software vendor playbook, including the geographic limits on Azure Artifact Signing (formerly Trusted Signing) that bite vendors based outside the US/EU.

How Per-Machine Windows Apps Silently Auto-Update — Three Patterns Learned from Chrome, Slack, and VS Code

Per-user auto-update is straightforward. The moment you try silent auto-update on a per-machine install, without a UAC prompt for a standard user, the problem becomes hard. This post reads across how Chrome, Slack, VS Code, Docker Desktop, and others actually solve it, and reduces those implementations to three patterns: an Omaha-style SYSTEM service, MSIX platform delegation, and MDM redistribution.

[Windows] Fake Java Update Sites and Solutions

How I cleaned up a Windows machine hit by fake Java update sites, using browser cache clearing and IObit Uninstaller.

[Windows] How to use 'Junction' - a symbolic link-like feature

A quick reference memo on using Junction on Windows 7 as a Linux-style symbolic link.

Can't Sign In to a Local Account on an Entra ID-Joined PC — Fix It by Prefixing the Username with ".\"

I set up a loaner Windows 11 PC with Entra ID Join and created a local account, user01, for the trainee. When I tried to sign in as user01, the password was correct but it would not log in. Here is the cause, and why prefixing the username with '.\' fixes it in one step.

How to use Windows on Mac for free (IE, Edge only)

Set up IE and Edge testing on a Mac for free using VirtualBox and ievms.

[Windows] When You Accidentally Delete Programs, Use 'System Restore' to Revert

How I recovered a Windows machine with System Restore after uninstalling too many programs.

[Windows10] L2TP/IPSec VPN client connection setup

Reference notes for L2TP/IPSec VPN client setup on Windows 10, including a Mac VPN Server tweak.

[Windows7] Creating Password-Protected Zip Files

A quick memo: use 7-Zip to create password-protected Zip files on Windows 7.

[Windows7] Solution for 'The User Profile Service service failed the logon' Error

Recovering Windows 7 from the User Profile Service logon failure using Microsoft's official steps in Safe Mode.

[WinSCP] How to configure exclusion settings to avoid transferring SVN files

Exclude .svn from WinSCP transfers by setting `.svn/;` in the transfer mask.