Laptops freeze up

Hello,

We are a (business) MSP and have several hundred Dell Latitudes in circulation (among some other models). We have frequently put away the Latitude 3450/3550 and 5450/5550 over the past few months.

These laptops are shipped with a clean Windows installation and then the driver library is restored via Dell Command Update. The drivers are also updated after that. 

Many systems are fairly basic. I.e. standard things like Chrome, the Office suite, etc.

We have experienced on several occasions, with different customers, that these Latitudes seem to freeze up. The only solution then is to hold down the power button for several seconds and thus reboot the laptop.

All systems where this happens are also up-to-date.

What can explain this possible behavior and are there more people experiencing this problem?

By the way, it also happens with older generation Latitudes but only since about six months has it become quite frequent.