Bug jagex wont help

i ever had this issue till download rs legacy/osrs 07 intaller 1.2.7 off there web site i used the fix it tool it did not work
the error whn installing it is:
the windows installer could not be accessed ... ect

note that all there programs install with out any problems

how do fix all i do is open it then click accept on tos then next on installer then it just sit there till i get there error i can use the bot bc it need rs client.

 

i would have done that if could there no why 2 run as adman even under properties capability it just checked grayed out all i can do i install repair or unistall i guess its bc its an msi not a exe im just think about reformating or just install linux on virtalcomputer again i wish we had the the old bot client as well if people have issue with client. jegex just told me 2 use an fix it tool that did not help at all lol i been trying 2 get this 2 work since you updated.... all bc of a client

 

lol wow dude you lost a custmer im deleting my account on here your bot is shit english in my native laguage self thought and a bussissnes owner have nice day and putting your sites on 2 be hacked list hope your site not vul