State Administration for Industry and Commerce (SAIC) task force launched an inquiry for Microsoft to clarify major problems found in electronic data during the probe, Xinhua reported.
The company needs to submit a complete explanation after the inquiry, the SAIC said in a statement.
In 2014, Microsoft was suspected of not fully disclosing information of its Windows operating system and Microsoft Office application, causing incompatibility problems.
According to Chinese law, incompatibility without advance warning to customers could be regarded anti-competitive.
