Vista

It happened to me once. I backed up my files and then I let it reapir it. It seemed to work fine. Didn't seem to change anything. Just backup your files first.

It's basically asking if you want to run scandisk on it. Would not hurt to do it once - but if it does this all the time, I'd use the "safely remove hardware" function that should be hidden in the taskbar...right-click that, and stop the drive letter of the nuvi before unplugging just to keep it happy.

Yeah, the funny thing is that it doesn't ask me on any other box.

I also get this message...and I promply canel it...Vista also seems to 'shut' off the USB ports for some unknown reason..they better come out with SP1 soon or I am converting back to XP...

That's normal in Vista whenever you plug in a usb stroage device.

Its normal to say that it may have errors each time? I am afraid to do a scan disk, the last time that I did a defrag (which I know it isn't the same thing) it screwed up my c530. Of course, this is on the SD card, not the nuvi, so I might try it.

I use Diskeeper all the time and defrag not only my SD card but also my nuvi's (660 and 680) and it does seem to help, especially when you do an upgrade.

I'm running a Vista system and I have never been asked that. My problem is using the safely disconnect hardware. The system constantly tells me that my Garmin is being used by another prgram. It won't let me disconnect until I close all open programs.

Doesn’t the GPSr use an internal memory as a hard-drive? Like maybe a flash drive of sorts? If so, there really isn’t need to defrag or scan. What do you think?

Correct - the mass storage on a GPSr is flash memory - not "hard drives"...no moving parts. And flash memory does have a finite number of times it can be written to, so frequent defragging would cause one to reach than point sooner than someone who didn't defrag...so - defrag at your own risk. Checking for issues like lost file segments, and file system/directory corruption is something that's not a bad idea to do once in a while as those kinds of issues can cause a GPSr to become a paperweight.

I don't believe the write limitation is even a factor as the write limitation is in the 'hundreds of thousands' of write cycles. In addition, firmware that spreads the writes over different sectors further increases the number of write cycles. Even if one would defrag the flash drive every week, what is this in the realm of 'hundreds of thousands'? My guess is the technology that increases the size of the flash drive will cause the smaller ones to be replaced long before the write cycle limitation is exceeded.

I defrag mine because I like things 'neat' and 'in order'. Never had a problem. Did it help any? Never compared access times as too many variables affect this number.

RT

Thank you kch50428 & retiredtechnician.