General

1, turn off your firewall and anti virus.
2. delete nexon files
3. restart computer and redownload maplestory.
4. installed ms
5. turn back on firewall and anti virus
6- restart comp (optional)

Another option is leave ur pc / laptop alone while ur installing maple, i got that once because i was playing another game while downloading. To add on to the temp file thing u can safely remove them by installing CCleaner which is a wonderful program to use to remove unnecessary files such as temp / log files & ur browzing history and free up space on ur hard drive.

[quote=BobR]It's really hard to tell just from that anonymous error message what's wrong.

Do you have enough free disk space on your hard drive..?
It takes something like 25-30 GB free space to download and install Maplestory now.
AFTER the game is finished installing successfully the game only takes about 5.5GB, but during the installation process it makes temporary folders and files that fill up several times that much.[/quote]

No, I doubt it. I tried downloading maple on my very old desktop and it said I didnt have enough space so yeah...
OT: try to download manual patch or if theres any place that allows you to send large files, I can send you my maple folder

It's really hard to tell just from that anonymous error message what's wrong.

Do you have enough free disk space on your hard drive..?
It takes something like 25-30 GB free space to download and install Maplestory now.
AFTER the game is finished installing successfully the game only takes about 5.5GB, but during the installation process it makes temporary folders and files that fill up several times that much.