LeaseWeb has erased MegaUpload user data from about 600 servers without warning, according to the MegaUpload founder, Kim Dotcom.

Dotcom alleged that the European firm wiped out private photos, videos and documents stored on servers used by the site without issuing any warming, which had destroyed all user data along with the vital evidence for the defence.

According to LeaseWeb, about 630 servers rented by MegaUpload had been erased in February 2013, about a year after the US authorities blocked the site and accused its operators of facilitating online piracy.

LeaseWeb said in a statement that the move comes after a year of nobody showing any interest in the servers and data.

"We did inform MegaUpload about our decision to re-provision the servers," the firm said.

"As no response was received, we commenced the re-provisioning of the servers in February 2013.

"To minimise security risks and maximise the privacy of our clients, it is a standard procedure at LeaseWeb to completely clean servers before they are offered to any new customer."

Dotcom insisted that that his lawyers had frequently asked LeaseWeb not to erase Megaupload servers during the ongoing pending court proceedings in the US.

Kim was arrested in January 2012, following a raid as part of an FBI investigation, accusing that Dotcom led firm had generated millions from internet piracy and violated copyright policies since 2005.