Thumb drive can't be read on PC

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PE_Mac

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Oct 18, 2010
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159
I wasn't sure where to put this question.

I have an 8GB SanDisk U3 Cruzer thumb drive. I have always been able to use it on both my Mac and my PC, however after formatting it for a startup disk to install Mavericks on my Mac then reformatting it on the Mac to Fat32 so it should be able to be read on both, the PC does not see it any longer. I can write to and read it on my Mac. I tried to go into Disk Management on my PC, but when I click to format it, it gives the following message:

"An unexpected error has occurred. Check the System Event Log for more information on the error. Close the Disk Management console, then restart Disk Management or restart the computer.

I looked at Event Viewer, which I presume is the same as System Event Log, but don't know what I'm looking at there.

This has happened on both my PC with OS Vista and my laptop with OS Windows 7.

Would appreciate any suggestions on a way to fix this.

This is the TSG log from my Vista PC:

Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft® Windows Vista™ Home Premium, Service Pack 2, 64 bit
Processor: Pentium(R) Dual-Core CPU E5200 @ 2.50GHz, Intel64 Family 6 Model 23 Stepping 6
Processor Count: 2
RAM: 5886 Mb
Graphics Card: NVIDIA GeForce 9200, 256 Mb
Hard Drives: C: Total - 300999 MB, Free - 176524 MB; D: Total - 192070 MB, Free - 109805 MB; E: Total - 102398 MB, Free - 43669 MB;
Motherboard: Gateway, FMCP7AM
Antivirus: avast! Antivirus, Updated and Enabled

Thanks
PegM
 
Joined
Feb 9, 2015
Messages
185
Can Mac format a drive in NTFS or FAT? If yes, give it a go. A program for Windows that's worth a try is Rufus, I use it regularly to make bootable flash drives.

Occasions like these is why I have an old laptop with a Linux on; it's a life saver when it comes to different file systems.
 

managed

Allan
Moderator
Joined
May 24, 2003
Messages
15,068
If you used GPT change that to MBR with Disk Utility on the Mac.

Did you delete all the partitions on the Usb stick, including the EFI first partition ? If not then do that on the Mac then make a single partition for the whole drive and format it Fat 32.
 

crjdriver

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Joined
Jan 2, 2001
Messages
43,445
The hp utility works VERY well for just this task. I have used it many many times on usb drives that were used to install linux. It will recover the full size of the drive.
 

managed

Allan
Moderator
Joined
May 24, 2003
Messages
15,068
I didn't know the HP utility could cope with GPT and/or EFI.
 

crjdriver

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Jan 2, 2001
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43,445
That may be one of the options [on a linux system at the moment]

Quite often when you make a linux install usb then try and use the usb for something else you get part [or most] of the drive unusable. An 8gig usb drive might end up with 2gig usable after using it for linux.

A simple format with the hp utility restores all of the drive.
 
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