I have a SanDisk Ultra 64Go usb stick. I got it in September 2019 so it is not old. It was very fast, as advertised with 150mb/s in read speed. However, today I decided to benchmark it with AS SSD tool. Everything was going good (write/read speeds correct) but then it started something called “4K-64th”. And, now, it was at like 1mb/s and since the benchmark tool have to write 1gb and after read it… I could not wait for that So, I decided to task kill the benchmark (the abort button was not working). I deleted the folder the tool created for its benchmarks. And, now, the jey is soooo slow. I tried benchmarking another time and now the read speed is 5mb/s !!
I already tried formatting the drive, even deleting and creating partition but still very slow…
What did I do ???
Thanks and sorry for my english