Windows 7 PC remote desktop Kubuntu 24.04 Plasma 5

The "not applicable" error when trying to install **KB2592687** (RDP 8.0 update) on your Windows 7 machine usually means one (or more) of these common issues:

### 1. Wrong Version Downloaded (Most Likely Cause)

Microsoft provides separate downloads for **32-bit (x86)** and **64-bit (x64)** Windows 7.

- If your PC is 64-bit but you downloaded the 32-bit package (or vice versa), it will say "not applicable".

- Check your system type: Right-click **Computer** > **Properties** > Look under "System type".

Download the correct one from the official Microsoft links:

- 32-bit: https://www.microsoft.com/en-us/download/details.aspx?id=35393

- 64-bit: https://www.microsoft.com/en-us/download/details.aspx?id=35387

### 2. Missing Prerequisite Update

KB2592687 requires **KB2574819** to be installed first.

- Search for KB2574819 in **Windows Update** history (Control Panel > Windows Update > View update history).

- If missing, download it manually from the Microsoft Update Catalog: https://www.catalog.update.microsoft.com/Search.aspx?q=KB2574819

https://www.microsoft.com/en-us/download/details.aspx?id=35388

  - Choose the correct 32-bit or 64-bit version, download the .msu file, and run it.

Install KB2574819 first, reboot, then try KB2592687 again.

### 3. You Already Have It (or a Newer Version)

- RDP 8.0 (KB2592687) is old (2012). Later updates like RDP 8.1 (KB2830477 or KB2984972) might already be installed via Windows Update, making this one "not applicable".

- Check installed updates: Control Panel > Programs and Features > View installed updates > Search for "2592687" or "Remote Desktop".

NOT REQUIRED IF UPDATES INSTALLED

Edit `/etc/xrdp/xrdp.ini`:

```

sudo nano /etc/xrdp/xrdp.ini

```

In `[globals]`:

```

ssl_protocols=TLSv1.2, TLSv1.3, TLSv1.1, TLSv1

```

Then:

```

sudo systemctl restart xrdp

```

This enables TLS 1.0 just for xRDP (on your trusted local network). You'll connect immediately from Windows 7. No more blue Plasma screen.

NOT REQUIRED IF UPDATES INSTALLED

================================

Windows 7

Install Windows6.1-KB2574819-v2-x64.msu

Install Windows6.1-KB2592687-x64.msu

Kubuntu 24.04 Server with Plasma 5.27

sudo apt install xrdp

sudo adduser xrdp ssl-cert

sudo systemctl restart xrdp

echo "/usr/bin/startplasma-x11" > ~/.xsession

# Create the session files

nano ~/.xsession

# WITH >

# Essential KDE/Plasma environment variables

export DESKTOP_SESSION=plasma

export XDG_SESSION_DESKTOP=KDE

export XDG_CURRENT_DESKTOP=KDE

export KDE_SESSION_VERSION=5

# Data directories (adjust if needed for snaps/apps)

export XDG_DATA_DIRS=/usr/share/plasma:/usr/local/share:/usr/share:/var/lib/snapd/desktop:/usr/share

export XDG_CONFIG_DIRS=/etc/xdg/xdg-plasma:/etc/xdg

# Critical: Launch Plasma with DBus (fixes many blue/black screen issues)

dbus-launch --exit-with-session startplasma-x11

nano ~/.xsessionrc

# WITH >

export XDG_SESSION_DESKTOP=KDE

export XDG_DATA_DIRS=/usr/share/plasma:/usr/local/share:/usr/share:/var/lib/snapd/desktop

export XDG_CONFIG_DIRS=/etc/xdg/xdg-plasma:/etc/xdg

export KDE_SESSION_VERSION=5

# Force software rendering (often fixes blue screen due to OpenGL issues in xRDP)

export LIBGL_ALWAYS_SOFTWARE=1

# Make it executable

chmod +x ~/.xsession

sudo systemctl restart xrdp