Question about Install .Net Frame

Hello everybody.

When installing .net framework 4.5.2 program downloads to notebook ok. I get same result in either style install... from internet or as downloaded file.

File when installing (File is needed to run software updates for system from Dell) file gets to 70% and does a fatal error! Now file will not backout at this point.

How in the world to get specific software/hardware for your own computer???

System is a Dell Inspiron N4010 Vintage 2011 4gb ram

Microsoft has sent us to Dell as this is a OEM issue.... I cannot get there as I am in Thailand! (Military) They gave us Telephone Number... Cannot call out of Station (secured no Phones)