Addertjes Onder Het Gras / hiaten

This web page shows some downsides I found in software packages. Each of them, on their own, can cause major troubles to newbies trying to use the software. For more experienced people they spoil the fun using the software and often cause headaches. Some issues may exist by incident, some may be caused by policy of the software author. As soon as an issue is gone to my knowledge, it will be striked out from this website. Known workarounds will be listed too, as long as they are required.
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???Windows 10Microsoft The Windows 10 Start Search box can stop working with Windows Update KB4512941

The Windows 10 Start Search box can stop working with Windows Update KB4512941

V1903 can break systray VPN-credentials dialog

V1903 can break systray VPN-credentials dialog

This makes the VPN-connection process appear to hang on server side forever, even though the problem is completely on the client side (concerning the username and password input user interface dialog). Any of the following workarounds work fine: 1. Connect through 'Control Panel'»'Network & Internet'»'Network Center'»VPN»Connect. 2. Run the legacy application rasphone.exe. 3. Store the credentials inside the VPN-connection settings prior to using the system tray VPN-Connect button.
  • After fresh installation, Windows 10 can show an error dialog right after the first successful boot (on some computers due to unrecognized hardware that got past the (pre-)installation checks).
  • For various causes, upgrade from Windows 7 to Windows 10 can fail (on some computers and configurations):
    • Sometimes no clear error message is shown on failure, in that case it could only be figured out by wading through various vaguely explained log files, for example:
      • \Windows.~BT\Sources\Panther\setuperr.log
    • Upgrade would be prohibited on 32-bit/64-bit differences and/or different installation languages, requiring cumbersome language pack installations and system setting changes prior to upgrade instead. It would be better if the installer would change the system settings automatically to the required ones, in case that the appropriate language pack is already present on the system.

Could be incredibly slow while Windows 7 wasn't

Due to forced Windows Aero Glass / Desktop Composition being turned on for the desktop and each and every software application, as well as continuous Windows updates, Windows 10 (graphics) could be slow on various older systems, while Windows 7 would run flawlessly with some tuning:
nearly not fast enoughIntel Core 2 Duo?Intel Pentium DIntel AtomIntel Celeron
fast or feasonableIntel Core 2 QuadIntel Core i7Intel Core i5Intel Core i3
This could be reason enough to skip the free upgrade from Windows 7»10 on certain PCs.
windows8.1_winhlp32_placeholders.pngDummy files instead of real winhlp32.exe for viewing .hlp Rich-Text-Files (RTF)

Dummy files instead of real winhlp32.exe for viewing .hlp Rich-Text-Files (RTF)

(only .chm Compiled-HTML-Help can be viewed standard on Windows 8 and at all on Windows 10)

Lacks widespread Windows features

  • Windows 10 32 bit and 64 bit void winhlp32.exe applications. Due to the system protected placeholder dummy winhlp32.exe and winhlp32.exe.mui files and lack of an installer, it is very hard to restore these files in their original spots.
  • Windows 10 64 bit voids 16 bit Windows applications.
Aero Glass/Desktop Compositionwinhlp32.exe16-bit subsystem
Windows 7can be turned offcan be installedcan be installed
Windows 8.1?can be installedcan be installed
Windows 10 32-bitenforced onenforced missingcan be installed
Windows 10 64-bitenforced onenforced missingenforced missing
  • Cannot remove existing wifi profile/SSID prior to successful connection, unless using command line 'netsh wlan delete profile <ssid>'. This is very cumbersome when a wifi access point's password changes.
  • Windows 10 update 1511 build 10586 is not always available for everyone through Windows Update. Despite that, all means of downloading and installing that update by hand are sometimes taken away from users. This could cause the Graphical User Interfaces of multiple systems in a single home being out of sync.
  • A black screen could appear instead of the login prompt, if the primary monitor is not correctly set. After login this could be easily resolved by pressing Windows-key+P, unfortunately this keyboard combination is not usable prior to login. This leaves the user up to guessing how to perform login blindly.
Windows 10 could usually needlessly wake up from tiny mouse movement during standby

Windows 10 could usually needlessly wake up from tiny mouse movement during standby

(unless disabled by the checkbox in Device Management / in the computer's BIOS-firmware setup)

Suddenly reboots with information prompt but without actual user confirmation

This could happen due to installing automatic Windows updates, from which the automatic reboot seems not easily disableable. It happened even after a certain 'inactivity timeout period' after selecting "Een andere keer", crashing open Putty-SSH-shell-sessions, non-cached Firefox-internet-tabs, (safely stored) Notepad-text and a Total Commander FTPS-session. This feels like a risky kind of screensaver.


Windows 10 is a great operating system. Unfortunately its update, upgrade and migration management and hardware support sometimes cause issues, even on decent systems. It drops features that users might be clueless about, being seduced by the free Windows 7»10 upgrade program, effectuating that users still have to buy third-party hardware and software upgrades in the end.