[SOLVED] Unpacking unable to read data error while installing a game

[Escap3]

Greetings guys,im in great need.I'm trying to instal several games like gta v and Unity on my pc,but while both games where installing i got the same message:an error occured while unpacking unable to read data!
unarn.dll returned an error code -6

ERROR:file operation failed

i tried to install gta v on my external at first.When i got the message i gussed that the problem was that i installed it ony my external,so i installed it again on my hard drive and the same thing happened.I have plenty of space for the game in both drives so i guess thats not the prob.Mind that i recenlty updated from windows 7 to 10,but in other games like dota i had not problems in installing or gameplay.My setup is the following,plz help!Thanks in advance!

Operating System
Windows 10 Pro 64-bit
CPU
AMD FX-6300 28 °C
Vishera 32nm Technology
RAM
8,00GB Dual-Channel DDR3 @ 669MHz (9-9-9-24)
Motherboard
Gigabyte Technology Co. Ltd. 970A-UD3P (CPU 1) 34 °C
Graphics
VE248 (1920x1080@60Hz)
1024MB ATI AMD Radeon HD 7700 Series (MSI) 35 °C
Storage
298GB Seagate ST3320613AS (SATA) 32 °C
1863GB Seagate Expansion Desk USB Device (USB (SATA)) 46 °C
Optical Drives
TSSTcorp CDDVDW SH-S223F ATA Device

 

[rgd1101]

from steam? origin?

 

[Escap3]

No just downloaded through torrents both of them

 

[ThatVietGuy]

That means you need to buy the game - simple as that.