diff --git a/scripts/Launch.cmd b/scripts/Launch.cmd
index c6a91980..526ae4b3 100644
--- a/scripts/Launch.cmd
+++ b/scripts/Launch.cmd
@@ -31,13 +31,12 @@ for %%v in (ARCHIVE_PASSWORD KIT_NAME_FULL OFFICE_SERVER_IP QUICKBOOKS_SERVER_IP
 rem Set ARCH to 32 as a gross assumption and check for x86_64 status
 set ARCH=32
 if /i "%PROCESSOR_ARCHITECTURE%" == "AMD64" set "ARCH=64"
-set "SEVEN_ZIP=%bin%\7-Zip\7za.exe"
+set "SEVEN_ZIP=%bin%\7-Zip\7z.exe"
 set "CON=%bin%\ConEmu\ConEmu.exe"
 set "FASTCOPY=%bin%\FastCopy\FastCopy.exe"
 set "POWERSHELL=%systemroot%\system32\WindowsPowerShell\v1.0\powershell.exe"
 set "PYTHON=%bin%\Python\x32\python.exe"
 if %ARCH% equ 64 (
-  set "SEVEN_ZIP=%bin%\7-Zip\7za64.exe"
   set "CON=%bin%\ConEmu\ConEmu64.exe"
   set "FASTCOPY=%bin%\FastCopy\FastCopy64.exe"
   set "PYTHON=%bin%\Python\x64\python.exe"
diff --git a/scripts/wk/kit/build_win.py b/scripts/wk/kit/build_win.py
index 69994081..475a0ab8 100644
--- a/scripts/wk/kit/build_win.py
+++ b/scripts/wk/kit/build_win.py
@@ -47,8 +47,7 @@ REGEX_SDIO_NETWORK_DRIVERS = re.compile(
   re.IGNORECASE,
   )
 REGEX_TORRENT_INDICES = re.compile(r'^(?P<index>\d+)\|(?P<path>.*)')
-SEVEN_ZIP = get_tool_path('7-Zip', '7za')
-SEVEN_ZIP_FULL = get_tool_path('7-Zip', '7z', check=False) # TODO: Replace with unrar from Pypi?
+SEVEN_ZIP = get_tool_path('7-Zip', '7z')
 WIDTH = 50
 
 
@@ -463,17 +462,13 @@ def download_xmplay_music():
   # Extract SNES archives
   for item in music_tmp.joinpath('SNES').iterdir():
     cmd = [
-      SEVEN_ZIP_FULL,
+      SEVEN_ZIP,
       'x', item, f'-oSNES\\{item.stem}',
       '-bso0', '-bse0', '-bsp0',
       ]
     run_program(cmd)
     delete_item(item)
 
-  # Remove 7-Zip (Full) from kit
-  delete_item(SEVEN_ZIP_FULL)
-  delete_item(SEVEN_ZIP_FULL.with_name('7z.dll'))
-
   # Remove bad songs
   for game, globs in MUSIC_SNES_BAD.items():
     for glob in globs:
diff --git a/scripts/wk/kit/tools.py b/scripts/wk/kit/tools.py
index da3e69c4..b80cd3bb 100644
--- a/scripts/wk/kit/tools.py
+++ b/scripts/wk/kit/tools.py
@@ -104,7 +104,7 @@ def extract_archive(archive, out_path, *args, mode='x', silent=True):
   """Extract an archive to out_path."""
   out_path = pathlib.Path(out_path).resolve()
   out_path.parent.mkdir(parents=True, exist_ok=True)
-  cmd = [get_tool_path('7-Zip', '7za'), mode, archive, f'-o{out_path}', *args]
+  cmd = [get_tool_path('7-Zip', '7z'), mode, archive, f'-o{out_path}', *args]
   if silent:
     cmd.extend(['-bso0', '-bse0', '-bsp0'])
 
diff --git a/scripts/wk/repairs/win.py b/scripts/wk/repairs/win.py
index 1ae0b5d0..25fc58fe 100644
--- a/scripts/wk/repairs/win.py
+++ b/scripts/wk/repairs/win.py
@@ -71,7 +71,7 @@ from wk.std           import (
 # STATIC VARIABLES
 LOG = logging.getLogger(__name__)
 BACKUP_BROWSER_BASE_CMD = (
-  get_tool_path('7-Zip', '7za'),
+  get_tool_path('7-Zip', '7z'),
   'a', '-t7z', '-mx=1', '-bso0', '-bse0', '-bsp0',
   )
 CONEMU_EXE = get_tool_path('ConEmu', 'ConEmu', check=False)
diff --git a/setup/build_macos b/setup/build_macos
index 9e4c99f5..eced9bbf 100755
--- a/setup/build_macos
+++ b/setup/build_macos
@@ -38,7 +38,7 @@ IMAGE_DEV="$(hdiutil attach -mountpoint /Volumes/BaseSystem "${BASE_IMAGE}" -nob
 OS_NAME="$(ls /Volumes/BaseSystem | grep -E 'OS X|macOS' | sed -E 's/Install (OS X|macOS) (.*)\.app/\2/')"
 OS_VERSION="$(defaults read /Volumes/BaseSystem/System/Library/CoreServices/SystemVersion ProductVersion)"
 OUT_NAME="${HOME}/Desktop/WK ${OS_NAME} ($(date +"%Y-%m-%d"))"
-TIMEZONE="$(fgrep LINUX_TIME_ZONE "${ROOT_DIR}/scripts/wk/cfg/main.py" | cut -d '=' -f 2 | sed "s/'//g")"
+TIMEZONE="$(grep -F LINUX_TIME_ZONE "${ROOT_DIR}/scripts/wk/cfg/main.py" | cut -d '=' -f 2 | sed "s/'//g")"
 WK_PATH="/Volumes/1201_UFD"
 
 # Convert to a 4 GB R/W image
@@ -133,7 +133,7 @@ cp -a "${MACOS_DIR}/aliases" "${WK_PATH}/.aliases"
 cp -a "${MACOS_DIR}/bashrc" "${WK_PATH}/etc/profile"
 cp -a "${MACOS_DIR}/vimrc" "${WK_PATH}/.vimrc"
 if [[ "${OS_VERSION:3:2}" == "11" ]]; then
-  cp -a /usr/bin/fgrep "${WK_PATH}/usr/bin"/
+  cp -a /usr/bin/grep -F "${WK_PATH}/usr/bin"/
   cp -a /usr/bin/locale "${WK_PATH}/usr/bin"/
   rsync -aS /usr/share/locale/ "${WK_PATH}/usr/share/locale"/
 elif [[ "${OS_VERSION:3:2}" == "13" ]]; then
diff --git a/setup/linux/profile_gui/airootfs/etc/skel/.zlogin b/setup/linux/profile_gui/airootfs/etc/skel/.zlogin
index 7d9623a1..b6a5bbdc 100644
--- a/setup/linux/profile_gui/airootfs/etc/skel/.zlogin
+++ b/setup/linux/profile_gui/airootfs/etc/skel/.zlogin
@@ -9,7 +9,7 @@ if [ "$(fgconsole 2>/dev/null)" -eq "1" ]; then
     echo "Done"
 
     # Start X or HW-diags
-    if ! fgrep -q "nox" /proc/cmdline; then
+    if ! grep -Fq "nox" /proc/cmdline; then
         # Show freeze warning
         echo ""
         echo "NOTE: Not all GPUs/displays are supported."
diff --git a/setup/macos/live-macos-startup b/setup/macos/live-macos-startup
index db939bdf..9702ecf8 100755
--- a/setup/macos/live-macos-startup
+++ b/setup/macos/live-macos-startup
@@ -20,7 +20,7 @@ cd /Volumes/RAM_Disk
 
 # Connect to WiFi?
 if ! [[ -e /Volumes/RAM_Disk/.wifi ]]; then
-  WIFI_NET="$(fgrep ':::' /.known_networks | head -1)"
+  WIFI_NET="$(grep -F ':::' /.known_networks | head -1)"
   if ! ifconfig | grep -Eq '(((10|172)\.\d+|192.168)\.\d+\.\d+)' 2>/dev/null; then
     echo "Connecting to WiFi..."
     NET_DEV="$(/usr/sbin/networksetup \
diff --git a/setup/windows/build.ps1 b/setup/windows/build.ps1
index 5ef7685d..e245356b 100644
--- a/setup/windows/build.ps1
+++ b/setup/windows/build.ps1
@@ -87,7 +87,6 @@ if ($MyInvocation.InvocationName -ne ".") {
 
   # 7-Zip
   DownloadFile -Path $Temp -Name "7z-installer.msi" -Url $Sources.'7-Zip Installer'
-  DownloadFile -Path $Temp -Name "7z-extra.7z" -Url $Sources.'7-Zip Extra'
 
   # ConEmu
   DownloadFile -Path $Temp -Name "ConEmuPack.7z" -Url $Sources.'ConEmu'
@@ -125,24 +124,16 @@ if ($MyInvocation.InvocationName -ne ".") {
 
   ## Extract ##
   # 7-Zip
-  ## NOTE: 7z.exe & 7z.dll are left for build_kit_windows.py, they'll be removed by it
   Write-Host "Extracting: 7-Zip"
   try {
     $ArgumentList = @("/a", "$Temp\7z-installer.msi", "TARGETDIR=$Temp\7zi", "/qn")
     Start-Process -FilePath "$System32\msiexec.exe" -ArgumentList $ArgumentList -Wait
-    $SevenZip = "$Temp\7zi\Files\7-Zip\7z.exe"
-    $ArgumentList = @(
-      "x", "$Temp\7z-extra.7z", "-o$Bin\7-Zip",
-      "-aoa", "-bso0", "-bse0", "-bsp0",
-      "-x!x64\*.dll", "-x!Far", "-x!*.dll")
-    Start-Process -FilePath $SevenZip -ArgumentList $ArgumentList -NoNewWindow -Wait
-    Start-Sleep 1
-    Move-Item "$Temp\7zi\Files\7-Zip\7z.exe" "$Bin\7-Zip\7z.exe"
+    New-Item -Type Directory $Bin\7-Zip 2>&1 | Out-Null
     Move-Item "$Temp\7zi\Files\7-Zip\7z.dll" "$Bin\7-Zip\7z.dll"
-    Move-Item "$Bin\7-Zip\x64\7za.exe" "$Bin\7-Zip\7za64.exe"
-    Remove-Item "$Bin\7-Zip\x64" -Recurse
+    Move-Item "$Temp\7zi\Files\7-Zip\7z.exe" "$Bin\7-Zip\7z.exe"
+    Move-Item "$Temp\7zi\Files\7-Zip\License.txt" "$Bin\7-Zip\License.txt"
     Remove-Item "$Temp\7z*" -Recurse
-    $SevenZip = "$Bin\7-Zip\7za.exe"
+    $SevenZip = "$Bin\7-Zip\7z.exe"
   }
   catch {
     Write-Host ("  ERROR: Failed to extract files." ) -ForegroundColor "Red"