Gartner analysts at the time said increased competition in the enterprise PC market hurt Dell and boosted Lenovo, adding that Lenovo's "aggressive marketing" in both the enterprise and consumer markets aided the company.

Then, just this week, a Gartner report showed that , which is barely clinging to its top spot in the market.

HP, which suffered a global shipment decline of 12.1% in the second quarter of this year, holds 14.9% of the PC market. Lenovo now has 14.7%.

"Lenovo has more than a good shot to overtake HP in global PC sales," said Dan Olds, an analyst with The Gabriel Consulting Group. "They'll need a very solid third quarter, back-to-school selling season to do it this year, but I'd expect to see them sitting alone in the number one slot by the end of first quarter 2013."

Analysts agreed that HP has been causing many of its own problems