WASHINGTON — The head of the federal agency investigating Karl Rove’s White House political operation is facing allegations that he improperly deleted computer files during another probe, using a private computer-help company, Geeks on Call. Scott Bloch runs the Office of Special Counsel, an agency charged with protecting government whistleblowers and enforcing a ban on federal employees engaging in partisan political activity. Mr. Bloch’s agency is looking into whether Mr. Rove and other White House officials used government agencies to help re-elect Republicans in 2006. At the same time, Mr. Bloch has himself been under investigation since 2005. At the direction of the White House, the federal Office of Personnel Management’s inspector general is looking into claims that Mr. Bloch improperly retaliated against employees and dismissed whistleblower cases without adequate examination. Recently, investigators learned that Mr. Bloch erased all the files on his office personal computer late last year. They are now trying to determine whether the deletions were improper or part of a cover-up, lawyers close to the case said. Bypassing his agency’s computer technicians, Mr. Bloch phoned 1-800-905-GEEKS for Geeks on Call, the mobile PC-help service. It dispatched a technician in one of its […]