External HDD no longer works on my machine, but works on others'

2 weeks ago i accidentally deleted some data from my external hard drive. then i had to do data recovery, the problem started when i cancelled the data recovery operation. Now my problem is that the external hard drive is no longer detectable\usable on that specific computer i had the data recovery operation running on, although it's working on all other devices (like laptops/PS3). I've been using that external HDD on that computer the past year, now the external HDD refuses to be detected by windows on that computer! I re installed windows, update my Mainboard bios, I even deleted all partitions i had on the HDD and recreated them, nothing seems to work! I was thinking how would cancelling data recovery operation cause the HDD to fail on that specific computer? Please help