Unfortunately firmware 1030.0 for Samsung UE26EH4500W Smart TV isn't available anymore as the producer has removed the "T-MST10PDEUC_1030.0.exe" file from its servers.
However, you can still download the newer firmware package compatible with the same LED TV, namely Samsung UE26EH4500W LED TV Firmware 2000.2
However, you can still download the newer firmware package compatible with the same LED TV, namely Samsung UE26EH4500W LED TV Firmware 2000.2
It is highly recommended to always use the most recent driver version available.
Try to set a system restore point before installing a device driver. This will help if you installed an incorrect or mismatched driver. Problems can arise when your hardware device is too old or not supported any longer.