Error message Olympus DM420: Can't make the system file. Connect to PC and delete unnecessary file.

you may need to format the memory of the device coz there might be a bad sector in the memory that the device cant read.

you might have to many programs running at the same time putting to much strain on the CPU central processing unit
try uninstalling a few unnecessary programs This tool deletes unnecessary or temporary files on your hard disk so you can increase the amount of storage space you have. Delete the files using Disk Cleanup If you want to reduce the number of unnecessary files on your hard disk to free up disk space and help your computer run faster, use Disk Cleanup. It removes temporary files, empties the Recycle Bin, and removes a variety of system files and other items that you no longer need. Open Disk Cleanup by clicking start all programs accessories system tools and then clicking Disk Cleanup. In the Disk Cleanup Options dialog box, choose whether you want to clean up your own files only or all of the files on the computer. If you are prompted for an administrator password or confirmation, type the password or provide confirmation. If the Disk Cleanup Drive Selection dialog box appears, select the hard disk drive that you want to clean up, and then click OK. Click the Disk Cleanup tab, and then select the check boxes for the files you want to delete. When you finish selecting the files you want to delete, click OK, and then click Delete files to confirm the operation. Disk Cleanup proceeds to remove all unnecessary files from your computer. This tool deletes unnecessary or temporary files on your hard disk so you can increase the amount of storage space you have. Delete the files using Disk Cleanup If you want to reduce the number of unnecessary files on your hard disk to free up disk space and help your computer run faster, use Disk Cleanup. It removes temporary files, empties the Recycle Bin, and removes a variety of system files and other items that you no longer need. Watch the demo (1:00) this should speed up your computer

Ok, try this, works for me:
- Remove the batteries- Insert its again- Connect the recorder via usb to pc- Copy one by one each archive you need to recover, after copy delete them from the recorder- Copy SYSTEM, RECORDER AND MANUALS FOLDER to pc- Format from the pc the recorder (i use a mac - disk utility) yes it is, ERASE!- Copy again the folders: SYSTEM-RECORDER-MANUALS- Unplug the recorder, remove the batteries, insert again- Turn on the recorder, it will display a different error, format the recoder, it will restore and reset the systems files.- It works for me!-

this might be a operating system error. try resetting it. there should be a small hole on your device big enought to fit a needle thru it. if this dosent work connect the device to your computer. if this dosent work contact the manufacturer

try reloading the olympus software or contact olympus tech support at olympus dot com

battery out of the camera and try again?

Connect the recorder to your mac and empty the trashbin

Yes, will restore any kind of files, including DSS files

Best Regards

Comment by Jerra: I got it to load for me when it asks you to connect to camera automatically, delete the tick. it took awhile to download from the disc.

try to connect the recorder to the PC and with the Olympus DSS Player Version 7 change the folders name to default