@RedCache - After this MAJOR failour from SANDISK i must say i lost my trust in the product, so i didn’t look for it in the first place
i ended up with a KINGSTON V300 with 240gb and a 120 gb + i formattet my expresscache to a drive of 16gb SSD.
Used Acronis True Image 2014 to clone my HD to the SSD, then upgraded to Win10 = boot time of 8-10 sec.
under 20 sec. i have startet Chrome and loaded som news from the web = IAM A WERY HAPPY MAN !