I've used Karen's Replicator (KR) on a daily basis on several PCs for MANY years (probably >10). The KR routines I run haven't changed for months (maybe even years). They run automatically each day. ISTR a Windows update a day or so ago. Yesterday (17th April 2017) the backup was slow - so I looked at the KR log file. It showed an error for every item that required a new folder to be set up on the backup (target) drive. If the folder exists, KR will copy new files. If the folder doesn't exist, it won't create one. After a bit more research I can confirm that this is true on TWO PCs (one a tower and one a laptop). The problem occurs both with an off-board USB-connected HDD and also to a secondary internal HDD. So it is not simply a "USB issue". Has something changed in Windows ? Is there a setting I can change to allow "Karen" to create new folders on the target drive ?