diff --git a/app.py b/app.py
index 2162180..369da55 100644
--- a/app.py
+++ b/app.py
@@ -75,7 +75,8 @@ def vm_details(vmid):
         vm['expire'] = get_vm_expire(vmid, app.config['VM_EXPIRE_MONTHS']).strftime('%m/%d/%Y')
         usage = get_user_usage(proxmox, 'proxstar')
         limits = get_user_usage_limits(user)
-        return render_template('vm_details.html', username='com6056', vm=vm, usage=usage, limits=limits)
+        usage_check = check_user_usage(proxmox, user, vm['config']['cores'], vm['config']['memory'], 0)
+        return render_template('vm_details.html', username='com6056', vm=vm, usage=usage, limits=limits, usage_check=usage_check)
     else:
         return '', 403
 
@@ -86,6 +87,11 @@ def vm_power(vmid, action):
                               app.config['PROXMOX_USER'],
                               app.config['PROXMOX_PASS'])
     if int(vmid) in get_user_allowed_vms(proxmox, user):
+        if action == 'start':
+            config = get_vm_config(proxmox, vmid)
+            usage_check = check_user_usage(proxmox, user, config['cores'], config['memory'], 0)
+            if usage_check:
+                return usage_check
         change_vm_power(proxmox, vmid, action)
         return '', 200
     else:
diff --git a/templates/vm_details.html b/templates/vm_details.html
index 928c310..fca9d3a 100644
--- a/templates/vm_details.html
+++ b/templates/vm_details.html
@@ -10,8 +10,11 @@
                 </div>
                 <div class="panel-body">
                     {% if vm['qmpstatus'] == 'stopped' %}
+                    {% if not usage_check %}
                     <button class="btn btn-success proxstar-actionbtn" id="start-vm" name="start" data-vmid="{{ vm['vmid'] }}" data-vmname="{{ vm['name'] }}">START</button>
-                    <button class="btn btn-danger proxstar-actionbtn" id="delete-vm" name="delete" data-vmid="{{ vm['vmid'] }}" data-vmname="{{ vm['name'] }}">DELETE</button>
+                    {% else %}
+                    Insufficient resources to start VM.
+                    {% endif %}
                     {% endif %}
                     {% if vm['qmpstatus'] == 'paused' %}
                     <button class="btn btn-success proxstar-actionbtn" id="resume-vm" name="resume" data-vmid="{{ vm['vmid'] }}" data-vmname="{{ vm['name'] }}">RESUME</button>
@@ -24,6 +27,11 @@
                     <button class="btn btn-warning proxstar-actionbtn" id="stop-vm" name="stop" data-vmid="{{ vm['vmid'] }}" data-vmname="{{ vm['name'] }}">STOP</button>
                     <button class="btn btn-warning proxstar-actionbtn" id="reset-vm" name="reset" data-vmid="{{ vm['vmid'] }}" data-vmname="{{ vm['name'] }}">RESET</button>
                     {% endif %}
+                    {% if vm['qmpstatus'] == 'stopped' %}
+                    <button class="btn btn-danger proxstar-actionbtn" id="delete-vm" name="delete" data-vmid="{{ vm['vmid'] }}" data-vmname="{{ vm['name'] }}">DELETE</button>
+                    {% else %}
+                    To delete VM, power it off.
+                    {% endif %}
                 </div>
             </div>
         </div>
@@ -76,31 +84,27 @@
                         <dt>Cores</dt>
                         <dd>
                             {{ vm['config']['cores'] * vm['config'].get('sockets', 1) }}
-                            {% if limits['cpu'] - usage['cpu'] > 0 %}
-                                {% if vm['qmpstatus'] == 'running' or vm['qmpstatus'] == 'paused' %}
-                                <button class="btn btn-default proxstar-changebtn" id="change-cores" data-vmid="{{ vm['vmid'] }}" data-cores="{{ vm['config']['cores'] * vm['config'].get('sockets', 1) }}" data-usage="{{ usage['cpu'] - (vm['config']['cores'] * vm['config'].get('sockets', 1)) }}" data-limit="{{ limits['cpu'] }}">
-                                    <span class="glyphicon glyphicon-cog"></span>
-                                </button>
-                                {% else %}
-                                <button class="btn btn-default proxstar-changebtn" id="change-cores" data-vmid="{{ vm['vmid'] }}" data-cores="{{ vm['config']['cores'] * vm['config'].get('sockets', 1) }}" data-usage="{{ usage['cpu'] }}" data-limit="{{ limits['cpu'] }}">
-                                    <span class="glyphicon glyphicon-cog"></span>
-                                </button>
-                                {% endif %}
+                            {% if vm['qmpstatus'] == 'running' or vm['qmpstatus'] == 'paused' %}
+                            <button class="btn btn-default proxstar-changebtn" id="change-cores" data-vmid="{{ vm['vmid'] }}" data-cores="{{ vm['config']['cores'] * vm['config'].get('sockets', 1) }}" data-usage="{{ usage['cpu'] - (vm['config']['cores'] * vm['config'].get('sockets', 1)) }}" data-limit="{{ limits['cpu'] }}">
+                                <span class="glyphicon glyphicon-cog"></span>
+                            </button>
+                            {% else %}
+                            <button class="btn btn-default proxstar-changebtn" id="change-cores" data-vmid="{{ vm['vmid'] }}" data-cores="{{ vm['config']['cores'] * vm['config'].get('sockets', 1) }}" data-usage=0 data-limit="{{ limits['cpu'] }}">
+                                <span class="glyphicon glyphicon-cog"></span>
+                            </button>
                             {% endif %}
                         </dd>
                         <dt>Memory</dt>
                         <dd>
                             {{ vm['config']['memory'] // 1024 }}GB
-                            {% if limits['mem'] - usage['mem'] > 0 %}
-                                {% if vm['qmpstatus'] == 'running' or vm['qmpstatus'] == 'paused' %}
-                                <button class="btn btn-default proxstar-changebtn" id="change-mem" data-vmid="{{ vm['vmid'] }}" data-mem="{{ vm['config']['memory'] // 1024 }}" data-usage="{{ usage['mem'] - vm['config']['memory'] // 1024 }}" data-limit="{{ limits['mem'] }}">
-                                    <span class="glyphicon glyphicon-cog"></span>
-                                </button>
-                                {% else %}
-                                <button class="btn btn-default proxstar-changebtn" id="change-mem" data-vmid="{{ vm['vmid'] }}" data-cores="{{ vm['config']['memory'] // 1024 }}" data-usage="{{ usage['mem'] }}" data-limit="{{ limits['mem'] }}">
-                                    <span class="glyphicon glyphicon-cog"></span>
-                                </button>
-                                {% endif %}
+                            {% if vm['qmpstatus'] == 'running' or vm['qmpstatus'] == 'paused' %}
+                            <button class="btn btn-default proxstar-changebtn" id="change-mem" data-vmid="{{ vm['vmid'] }}" data-mem="{{ vm['config']['memory'] // 1024 }}" data-usage="{{ usage['mem'] - vm['config']['memory'] // 1024 }}" data-limit="{{ limits['mem'] }}">
+                                <span class="glyphicon glyphicon-cog"></span>
+                            </button>
+                            {% else %}
+                            <button class="btn btn-default proxstar-changebtn" id="change-mem" data-vmid="{{ vm['vmid'] }}" data-cores="{{ vm['config']['memory'] // 1024 }}" data-usage=0 data-limit="{{ limits['mem'] }}">
+                                <span class="glyphicon glyphicon-cog"></span>
+                            </button>
                             {% endif %}
                         </dd>
                         <dt>Expiration</dt>