Guys, sorry for the indistinct post, but the situation is so amazing that I don’t know where to turn.
Spoiler: Of those Opera support I never answered :-(My girlfriend gave me this flash drive:

Kingston DataTraveler 112 8Gb
')
The gift came in handy when My previous one has recently failed. To my displeasure, after a while, I found that copying large 1-2 gb files can stretch for long periods of time - up to one to two hours instead of 5-15 minutes. Those. the timer of the remaining copying time suddenly began to increase the score up to hours. I sinned on the way out of a flash drive, because The glitch occurred on different computers with different versions of the Windows operating systems, and formatting the flash drive did not help. At the same time, I noticed that sometimes the flash drive worked fine, and the case never overheated.
It’s a long time to tell how, but I found that the common feature of all computers is the installed Opera 10.10. As a result, I found out that if
Opera 10.10 was launched while copying files to a USB flash drive
, the copy speed falls below the plinth .
Habraludi, what do you think about this, maybe someone can reproduce this problem?