Constantly getting corrupt source files while installing

Dear Majorgeek,

I hoped that i wouldn't have to look for help but it seems i have to.

Lately almost every game/software etc i try to install gets the following message:

an error occurred while trying to copy a file
the source file is corrupted

This is especially happening when i try to install something via a cd/dvd or via an iso (mounting the iso via software) (2 images are added in this post with the issue)

i tried nearly everything to find out what it is. I know for sure it isn't the cd's/dvd's or iso's because they all worked in the past. I have no clue what to do from here and I hope maybe someone here does have.

I originally thought this problem was coming from WinRar because I would get corrupted file warnings on perfectly normal looking archives and i even reinstalled winrar 4.20 64bit.


my specs:

Windows 7 Ultimate 64 bit

Intel i5 3570K
8GB DDR3 Ram
Palit GTX670
ASrock Z77 Pro3

ESET Smart Security 5


Any help is deeply appreciated

 

For troubleshooting purpose, right click the ESET tray icon and select 'Block Network' then select 'Temporarily disable protection'. See if the issue persists.
Don't forget to re-enable ESET protections when finished.

 

Sorry still getting errors.

Even tried completely disabling firewall and antivirus/spyware protection

 

Likely what ever source your downloading from has corrupt files. Try using original cd's not iso's. The winrar being in another language other then english confuses me as well. Are you using a pirated version of winrar? Please let me know if im wrong, but that may cause many issues with file corruption on downloaded files.

 

but it happens for all things wehn i install.

what do you mean winrar being different language?? i use the english 64 bit version.

and winrar is free to use for me

 

Check your hard drive for errors.

http://windows.microsoft.com/en-us/windows7/Check-a-drive-for-errors

 

Did a full diskchk, no problems found -.-

 

I basically can't install anything anymore now. even windows 8

 

Test your memory. Download the bootable iso file. You will have to burn it will Imgburn or other software that can burn a bootable iso image. Boot the CD and let it run for 7 passes.

http://majorgeeks.com/Memtest86_d4226.html

 

Memtest is getting all errors i think.

http://i.imgur.com/mA7hs.jpg?1

is this bad?

 

hmmm only one stick fails the test, so i removed the broken one

MSCONFIG only has ESET smart security to maximise startup speed

Only happens when installing software and i got regular BSODs out of the blue. I'll see taking the broken stick out fixes it

thank you