EXHIBIT 31.1
CERTIFICATION
I, L. George Klaus, certify that:
| 1. | I have reviewed this annual report on Form 10-K/A of Epicor Software Corporation; |
| 2. | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; |
| Date: | April 28, 2011 | /s/ L. George Klaus | ||||
| L. George Klaus | ||||||
| Chairman, President and Chief Executive Officer | ||||||
| (Principal Executive Officer) |