Avrdudess problem

hello Guys
I'm using Avrdudess Gui for first time & its working good
I'm trying to read a flash of atmega328 & its display OK.
(avr dude.exe: writing output file "c;\readtest.hex"
avrdude.exe done. Thank you)

but in drive C I couldn't fine this file Even I have set the folder options to show everything in folders
I'm using widows 10

janosandi:
"c;\readtest.hex"

Does it really have a semicolon after c? That should be a colon (:).

here is what avrdudes say
(
Reading | ################################################## | 100% -0.00s
avrdude.exe: Device signature = 0x1e950f
avrdude.exe: reading flash memory:
Reading | ################################################## | 100% 4.75s
avrdude.exe: writing output file “c:\readtest.hex”
avrdude.exe done. Thank you.)

Maybe your antivirus software is blocking avrdudess from writing to C:. You could try TEMPORARILY disabling the antivirus for just long enough to run the process. If that solves it you can adjust your antivirus settings to whitelist the problematic file or process or a dedicated folder where avrdudess will save the files to.

Maybe you should run your program as administrator

Don't try to write to the root of the C drive on recent versions of Windows. IT's one of the locations that Windows treats weirdly. Create a folder within the root of the C drive and put it there.