text: i have blockchecker virus on my pc, can someone teach me how to get rid of it step by step pls?   if you have an antivirus installed, update it and run it  and that should do the job for you. the link below has the steps to update and run norton antivirus. if you do not have an anti virus or do not want to do the updation and removal for some reason here is what i can suggest.  perform a search (start->search) for all files named 'blcokchecker'  note down the path (the entry in the 'in folder' column). use this path to perform the following steps:  1. use windows explorer to locate and delete the file.  2. 3. to delete the value from the registry important: symantec strongly recommends that you back up the registry before making any changes to it. incorrect changes to the registry can result in permanent data loss or corrupted files. modify the specified subkeys only. read the document: how to make a backup of the windows registry.  click start > run.  type regedit   then click ok.   note: if the registry editor fails to open the risk may have modified the registry to prevent access to the registry editor. security response has developed a tool to resolve this problem. download and run this tool, and then continue with the removal.   navigate to the subkey:  hkey_local_machine&#92;software&#92;microsoft&#92;windows&#92;currentversion&#92;run   in the right pane, delete the value:  "blockchecker" = "path of the adware"   navigate and deletes the following keys:  hkey_current_user&#92;software&#92;vb and vba program settings&#92;imadvertiser&#92;msn hkey_current_user&#92;software&#92;vb and vba program settings&#92;imadvertiser&#92;yahoo hkey_current_user&#92;software&#92;vb and vba program settings&#92;imadvertiser&#92;aol   exit the registry editor.