"Okay, I have here an Acer notebook, Aspire 4253, with the problem of missing serial number, model number and UUID I have tried to use MPRW tool, but got "working buffer size failed error code 86", so, any solution so that I can fix this problem, also because of this matter, the notebook will not detect the internal hard disk and the optical drive, the hard disk is working on other computer The BIOS maker is Insyde, BIOS model is InsydeH2O It's using AMD E450 Dual Core Processor Thank you for your attention