diff --git a/tools/pve/hw-acceleration.sh b/tools/pve/hw-acceleration.sh
index a8727b695..d983157be 100644
--- a/tools/pve/hw-acceleration.sh
+++ b/tools/pve/hw-acceleration.sh
@@ -54,6 +54,11 @@ if ! pveversion | grep -Eq "pve-manager/8\.[0-4](\.[0-9]+)*"; then
   exit
 fi
 
+if [ "$(dpkg --print-architecture 2>/dev/null)" = "arm64" ]; then
+  echo -e "${RD}Intel HW acceleration is only available on x86 (Intel) systems.${CL}"
+  exit 0
+fi
+
 whiptail --backtitle "Proxmox VE Helper Scripts" --title "Add Intel HW Acceleration" --yesno "This Will Add Intel HW Acceleration to an existing LXC Container. Proceed?" 8 72
 NODE=$(hostname)
 PREV_MENU=()
diff --git a/tools/pve/microcode.sh b/tools/pve/microcode.sh
index b1b236ad5..4ac47b51d 100644
--- a/tools/pve/microcode.sh
+++ b/tools/pve/microcode.sh
@@ -139,6 +139,12 @@ if ! command -v pveversion >/dev/null 2>&1; then
   exit
 fi
 
+if [ "$(dpkg --print-architecture 2>/dev/null)" = "arm64" ]; then
+  header_info
+  msg_error "CPU microcode updates are only available for x86 (Intel/AMD) systems."
+  exit 0
+fi
+
 whiptail --backtitle "Proxmox VE Helper Scripts" --title "Proxmox VE Processor Microcode" --yesno "This will check for CPU microcode packages with the option to install. Proceed?" 10 58
 
 msg_info "Checking CPU Vendor"
diff --git a/tools/pve/pbs-microcode.sh b/tools/pve/pbs-microcode.sh
index 0c6222899..e592e8e95 100644
--- a/tools/pve/pbs-microcode.sh
+++ b/tools/pve/pbs-microcode.sh
@@ -157,6 +157,12 @@ if [ ! -f /etc/proxmox-backup/user.cfg ]; then
   exit
 fi
 
+if [ "$(dpkg --print-architecture 2>/dev/null)" = "arm64" ]; then
+  header_info
+  msg_error "CPU microcode updates are only available for x86 (Intel/AMD) systems."
+  exit 0
+fi
+
 whiptail --backtitle "Proxmox Backup Server Helper Scripts" \
   --title "Proxmox Backup Server Processor Microcode" \
   --yesno "This script searches for CPU microcode packages and offers the option to install them.\nProceed?" 10 68
diff --git a/tools/pve/pbs3-upgrade.sh b/tools/pve/pbs3-upgrade.sh
index aa41e3512..fe0f14790 100644
--- a/tools/pve/pbs3-upgrade.sh
+++ b/tools/pve/pbs3-upgrade.sh
@@ -175,4 +175,10 @@ while true; do
   esac
 done
 
+if [ "$(dpkg --print-architecture 2>/dev/null)" = "arm64" ]; then
+  header_info
+  msg_error "This upgrade script targets the amd64 Proxmox repositories and is not supported on ARM64."
+  exit 1
+fi
+
 start_routines
diff --git a/tools/pve/pbs4-upgrade.sh b/tools/pve/pbs4-upgrade.sh
index 73304b62d..172617fd6 100644
--- a/tools/pve/pbs4-upgrade.sh
+++ b/tools/pve/pbs4-upgrade.sh
@@ -199,4 +199,10 @@ while true; do
   esac
 done
 
+if [ "$(dpkg --print-architecture 2>/dev/null)" = "arm64" ]; then
+  header_info
+  msg_error "This upgrade script targets the amd64 Proxmox repositories and is not supported on ARM64."
+  exit 1
+fi
+
 start_routines
diff --git a/tools/pve/post-pbs-install.sh b/tools/pve/post-pbs-install.sh
index b099d7032..31f41a49b 100644
--- a/tools/pve/post-pbs-install.sh
+++ b/tools/pve/post-pbs-install.sh
@@ -73,6 +73,8 @@ require_whiptail() {
   fi
 }
 
+arch_is_arm64() { [[ "$(dpkg --print-architecture 2>/dev/null)" == "arm64" ]]; }
+
 # ---- main ----
 main() {
   header_info
@@ -135,6 +137,12 @@ EOF
   no) msg_error "Selected no to Correcting Debian Sources" ;;
   esac
 
+  if arch_is_arm64; then
+    msg_ok "ARM64 detected - skipping Proxmox repository setup"
+    post_routines_common
+    return
+  fi
+
   # --- Enterprise repo ---
   read -r state file <<<"$(repo_state_list pbs-enterprise)"
   case $state in
@@ -209,6 +217,12 @@ EOF
   no) msg_error "Selected no to Correcting Debian Sources" ;;
   esac
 
+  if arch_is_arm64; then
+    msg_ok "ARM64 detected - skipping Proxmox repository setup"
+    post_routines_common
+    return
+  fi
+
   # --- Enterprise repo ---
   if component_exists_in_sources "pbs-enterprise"; then
     CHOICE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --title "PBS Enterprise Repository" --menu \
diff --git a/tools/pve/post-pmg-install.sh b/tools/pve/post-pmg-install.sh
index 2f8627358..519fe39de 100644
--- a/tools/pve/post-pmg-install.sh
+++ b/tools/pve/post-pmg-install.sh
@@ -53,6 +53,11 @@ if ! dpkg -s proxmox-mailgateway-container >/dev/null 2>&1 &&
   exit 232
 fi
 
+if [ "$(dpkg --print-architecture 2>/dev/null)" = "arm64" ]; then
+  msg_error "Proxmox Mail Gateway does not support ARM64."
+  exit 1
+fi
+
 repo_state() {
   # $1 = repo name (e.g. pmg-enterprise, pmg-no-subscription, pmgtest)
   local repo="$1"
diff --git a/tools/pve/post-pve-install.sh b/tools/pve/post-pve-install.sh
index 9e07cd906..05b244268 100644
--- a/tools/pve/post-pve-install.sh
+++ b/tools/pve/post-pve-install.sh
@@ -48,6 +48,8 @@ msg_error() {
 source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/api.func) 2>/dev/null || true
 declare -f init_tool_telemetry &>/dev/null && init_tool_telemetry "post-pve-install" "pve"
 
+arch_is_arm64() { [[ "$(dpkg --print-architecture 2>/dev/null)" == "arm64" ]]; }
+
 get_pve_version() {
   local pve_ver
   pve_ver="$(pveversion | awk -F'/' '{print $2}' | awk -F'-' '{print $1}')"
@@ -125,6 +127,12 @@ EOF
   no) msg_error "Selected no to Correcting Proxmox VE Sources" ;;
   esac
 
+  if arch_is_arm64; then
+    msg_ok "ARM64 detected - skipping Proxmox repository setup"
+    post_routines_common
+    return
+  fi
+
   CHOICE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --title "PVE-ENTERPRISE" --menu "The 'pve-enterprise' repository is only available to users who have purchased a Proxmox VE subscription.\n \nDisable 'pve-enterprise' repository?" 14 58 2 \
     "yes" " " \
     "no" " " 3>&2 2>&1 1>&3)
@@ -282,6 +290,12 @@ EOF
     esac
   fi
 
+  if arch_is_arm64; then
+    msg_ok "ARM64 detected - skipping Proxmox repository setup"
+    post_routines_common
+    return
+  fi
+
   # ---- PVE-ENTERPRISE ----
   if component_exists_in_sources "pve-enterprise"; then
     CHOICE=$(whiptail --backtitle "Proxmox VE Helper Scripts" \
diff --git a/tools/pve/pve8-upgrade.sh b/tools/pve/pve8-upgrade.sh
index 7149002ff..3db17a109 100644
--- a/tools/pve/pve8-upgrade.sh
+++ b/tools/pve/pve8-upgrade.sh
@@ -131,6 +131,12 @@ if ! command -v pveversion >/dev/null 2>&1; then
   exit
 fi
 
+if [ "$(dpkg --print-architecture 2>/dev/null)" = "arm64" ]; then
+  header_info
+  msg_error "This upgrade script targets the amd64 Proxmox VE repositories and is not supported on ARM64."
+  exit 1
+fi
+
 if ! pveversion | grep -Eq "pve-manager/(7\.4-(16|17|18|19))"; then
   header_info
   msg_error "This version of Proxmox Virtual Environment is not supported"