how to fix the idm main program is corrupt error message

But after IDM updates, security software may see that IDM executable file has changedĪnd starts to block access or turns on detailed download/write verification without user notification. Many firewall and antivirus programs give IDM maximum access rights on downloading and writing to disks during first IDM installation.

If it does not help, open Windows Update Center, find and DELETE update number KB2750841 and restart your computer.Īlso note that IDM cannot in any way bypass a security program when downloading or saving files, and data corruption does not depend on IDM.

If you have Eset NOD32 you can also try the following recommendation from Eset NOD32: Then FireWall/Antivirus did not damage files.

Also problem disappeared if they set 1 connection in 'Options→Connection' IDM dialog. Users reported successful problem resolution after uninstalling a security program. In particular we confirmed such problem with some versions of Eset NOD32 or Eset Smart Security. When IDM opens several files quickly in one thread, some firewalls and antiviruses mix the data of different connections, and thus they mix file parts which leads to data corruption. When IDM wants to write received data to a file, security programs first pass all data through their internal buffers where they scan data for possible viruses. Such programs interfere in opening network connections and in file creation processes. For example it can be some FireWall/Antivirus/Internet security application that controls network downloading processes and writing data to disks. Such problems may occur because of conflicts between IDM and other applications. The corruption of data may happen because of the following reasons:ġ. When the data does not match in several connections, IDM starts downloading the file from a scratch using one connection. When the data does not match, IDM re-downloads the non-matching file part from the beginning.

When IDM resumes a download, it falls back on several bytes and compares the beginning on new data with the end of old data downloaded earlier.

When IDM downloads a file using several connections, It requests several bytes more for every file part to match the adjacent file part data which was downloaded by another connection.

How to fix the idm main program is corrupt error message