How to open Powershell with cmd and use a .ps1 file - powershell

Question

I try to open a ps1 powershell file thats updates a gitrepo
i have tryed
powershell -ExecutionPolicy Bypass -Command "& '%USERPROFILE%\folder1\update.ps1'
this is working but when it comes to a requirements.txt promt writes error of not found that file i think powershell is not inside this folder directly so it cant find that file what is needed
if i make this
cd %USERPROFILE%\ & REM First change to the batch file folder
echo Points as at = %time% %date%> updatebing_log.txt & REM create a simple logfile with time and end result of the batch run
echo ============================folder1=========================== >> updatebing_log.txt
cd folder1\
start powershell
cd %USERPROFILE%\folder1
powershell -ExecutionPolicy Bypass -Command "& '%USERPROFILE%\folder1\update.ps1'
echo Waiting seconds
timeout /t 10 /nobreak > NUL
it is working
but it opens a cmd (bash file) promt and a powershell then it cd to folder
powershell do nothing then
inside cmd i see that the ps1 file is executed and alsow works with the requirements.txt

Answer 1

As per my comment. Here's what your code is doing. Thus the response you're seeing.
# Run this in cmd.exe
cd %USERPROFILE%\ & REM First change to the batch file folder
echo Points as at = %time% %date%> updatebing_log.txt & REM create a simple logfile with time and end result of the batch run
echo ============================folder1=========================== >> updatebing_log.txt
cd folder1\
# Start a PowerShell interactive session
start powershell
cd %USERPROFILE%\folder1
# Start a new PowerShell session from cmd.exe and run this code
powershell -ExecutionPolicy Bypass -Command "& "$env:USERPROFILE\folder1\update.ps1" # note the profile change I made for you.
# Run this in cmd.exe on Powerhell exit
echo Waiting seconds
timeout /t 10 /nobreak > NUL
If that is not the flow you were after, then you need to rethink this.

Answer 2

i made this at work it looks likke it works but dont know i try to show the working directory but it want show it only shows were the ps1 call file is
i made a test.bat
powershell -ExecutionPolicy Bypass -Command "& '%USERPROFILE%\Brewd\updatebrewdall.ps1'"
and updatecall.ps1
cd "folder1\"
powershell -ExecutionPolicy Bypass -Command "& '.\update.ps1'"
Start-Sleep -Seconds 10
# now back to previous directory
cd ..\
cd "folder2\"
"$([Environment]::CurrentDirectory)\$ComputerName"
powershell -ExecutionPolicy Bypass -Command "& '.\update.ps1'"
Start-Sleep -Seconds 10
# now back to previous directory
cd ..\
cd "folder3\"
"$([Environment]::CurrentDirectory)\$ComputerName"
powershell -ExecutionPolicy Bypass -Command "& '.\update.ps1'"
Start-Sleep -Seconds 10