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2 votes
1 answer
2k views

How to fill a flash drive with 1s instead of zeros

I recently ran the F3Tools on a large USB thumb drive that I purchased. It has a 240 GB FAT32 filesystem (not exFAT or NTFS, actual FAT32) on it, and it's supposed to be 256 GB, so I got slightly ...
user avatar
1 vote
3 answers
486 views

Why is Overwriting a File So Slow onto a Thumb Drive?

I use a USB thumb drive to back up my most important data. I have noticed that some files write very slowly and I finally realized what is different about them. These are files that are being over-...
Robert Bernstein's user avatar
1 vote
1 answer
671 views

How to Zero out free space on a pen drive on Windows?

I am looking for commands or methods whereby I can just write all zeros to the free space on a Pen drive on Windows OS. The existing files should not be affected. There's a built in command called '...
rajeev's user avatar
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