How to clean setup windows 8.1 64 bit from current windows 8.1 32bit without CD, USB, ...(only HDD, source windows 8.1 on hdd)? thanks
No, not extract the ISO to X: ; .........it seems you don't know DISM/imageX. OK, mount the ISO, goto sources, and copy install.wim to C:\ format X: to remove what you did. Open CMD (Admin), enter: Dism /apply-image /imagefile:C:\install.wim /index:1 /ApplyDir:X:\ After it's finished, you can see all the windows files in X:
After DISM finished: - in CMD(admin), enter: bcdboot /X:\windows - reboot that's it, proceed with your X64 setup from the OOBE setup screen.
My pc current running win 8. I had upgrade RAM to 4GB. Now, i need fresh install win 8.1 64 bit. My HDD have 3 partition: C (contain win 8 os), D and E (contain data). if i use this method and install win 8.1 64bit on partiton C, my data on D, E can lost?
Unless until, you select to erase or format those partitions, you'll not lose your data. Anyway, take a backup though.
LOL, you do have new surprises in every one of your new posts. The method I said was to install a windows in another drive from your current windows, and now you said you wish to install a 64 bit over a 32 bit in C: ??? Sorry, no way, better get a USB FD to fresh install it. (It could be done, but too complicated and difficult for you, man. ).