Não consigo instalar o IRPF 2015

[Elizabeth]

Alguém poderia me ajudar? Não consigo instalar o IRPF 2015 no windows 7, já desativei o anti-vírus(ESET SMART SECURITY , instalei a versão mais recente do java e nada resolve, aparece uma enorme mensagem de erro:
Error in action CheckForPreviousInstall
can't read "tmp(Dir)": no such element in array
    while executing
"list $mtime $id $tmp(Dir)"
    (procedure "::InstallAPI::ReadInstallInfo" line 39)
    invoked from within
"::InstallAPI::ReadInstallInfo -prefix PreviousInstall  -array PreviousInstallInfo"
    (procedure "::InstallJammer::ReadPreviousInstall" line 9)
    invoked from within
"::InstallJammer::ReadPreviousInstall"
    (procedure "::InstallJammer::actions::CheckForPreviousInstall" line 2)
    invoked from within
"::InstallJammer::actions::$component $this"
Error in action CheckForPreviousInstall
can't read "tmp(Dir)": no such element in array
    while executing
"list $mtime $id $tmp(Dir)"
    (procedure "::InstallAPI::ReadInstallInfo" line 39)
    invoked from within
"::InstallAPI::ReadInstallInfo -prefix PreviousInstall  -array PreviousInstallInfo"
    (procedure "::InstallJammer::ReadPreviousInstall" line 9)
    invoked from within
"::InstallJammer::ReadPreviousInstall"
    (procedure "::InstallJammer::actions::CheckForPreviousInstall" line 2)
    invoked from within
"::InstallJammer::actions::$component $this"
    while executing
"$obj execute"
    (procedure "::InstallJammer::ExecuteActions" line 69)
    invoked from within
"::InstallJammer::ExecuteActions $id -when $when"
    (procedure "::InstallJammer::NextCommand" line
    invoked from within
"::InstallJammer::NextCommand .wizard 5C5B9375-5DCF-DF7A-079C-9042A8BEA143"
    ("uplevel" body line 1)
    invoked from within
"uplevel #0 [string map $map $command]"
    (procedure "_eval_command" line 22)
    invoked from within
"_eval_command $path $cmd"
    (procedure "Wizard::next" line 9)
    invoked from within

[dioleno_loreno@hotmail.co]

Olá Galera esse é um novo canal,onde vamos abordar diverssos assuntos sobre informatica titurias e muitas outras coisas e claro quem estiver com duvidas só deixar nos comentarios e vamos fazer videos aulas pra te ajudar pra isso peço que se escreva  no canal

 link-->https://www.youtube.com/watch?v=kDe61eyVzPw