Category Archives: Errors

Security – About ARP .

The Address Resolution Protocol (ARP) is a key TCP/IP protocol that is used to determine the physical address of the network card that corresponds to an IP address. The ARP is a protocol used in the TCP/IP protocol suite at the internet layer. The ARP finds the MAC address of destination computer by using the… Read More »

Fix error: mysql error 1140 (42000).

This query will fix the error mysql error 1140 (42000).

Security – Power Eraser fix error message “Class not registered”.

I got this error “Class not registered” when I try to see images under my desktop. This message has many aspects of origin which led me to use a utility for checking and removing the backdoors. First you need to read about this tool: Norton Power Eraser uses our most aggressive scanning technology to eliminate… Read More »

Fix error: Install and uninstall windows LibreOffice.

When you try to install or uninstall LibreOffice software then this will want the old instalation file. For example I want to install the new LibreOffice 5.1.52 software and the instalation file try to find the old LibreOffice_5.1.4_Win_x64.msi. I fix this with download the LibreOfice_5.1.4.2_Win_x64.msi from here and renamed with LibreOffice_5.1.4_Win_x64.msi. Also you need to… Read More »