[FAHMI BASSEM]

there's a space between bassem and fahmi

PS C:\WINDOWS\system32> cd c:\users\fahmibassem
cd : Cannot find path 'C:\users\fahmibassem' because it does not exist.
At line:1 char:1
+ cd c:\users\fahmibassem
+ ~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : ObjectNotFound: (C:\users\fahmibassem:String) [Set-Location], ItemNotFoundException
+ FullyQualifiedErrorId : PathNotFound,Microsoft.PowerShell.Commands.SetLocationCommand

[Guzzler3]

cd 'c:\users\fahmi bassem'

note the single quotation marks.