Tak toto: https://support.steampowered.com/kb_article.php?re f=7333-UAXB-2919
smažeš vše, kromě
a pak spustíš steam z té složky, nikoliv z nějaké ikony na ploše/startuDelete all of the files in this folder except:
- \Steamapps\ folder
- Steam.exe (this file is listed as an application and features the black and white Steam logo)