Installation process:
1.SSD in an existing external enclosure (BLACK BOX) with SATA / (USB 2.0 / eSATA connector plugged
2. Clone the HDD to SSD Samsung via Acronis True Image on P55 USB 2.0 port
3. SSD installed in P55
4.schneller start W7PRO as expected. Lightroom is now running liquid
5. Download the Samsung Magician software and made a few adjustments
Conclusion:
Investment has paid off (SSD may indeed later in a newer notebook hike) and a few euros saved by ordering the SSD Basic Version