ohsyln

InstallShield msi by default checks these registry entries to identify previous installations. 
Manually deleting these entries tricks the msi installer into thinking it is a fresh installation, 
allowing it to carry on the installation procedure.

Fixes issue when:
- Installation is stuck in Modify/Repair/Remove, and neither option works


Solution - Registry keys to be deleted manually:
- HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products 

ohsyln

REM Sends a keystroke at fixed intervals to prevent screen lock
REM Bypasses most group policies that prevent execution of scripts in general
REM As long as you can run "cmd.exe" and "mshta.exe", this should work
REM 1) Open cmd.exe
REM 2) Copy-paste the command in cmd.exe and press enter

for /L %N in () do mshta vbscript.Execute("CreateObject(""wscript.shell"").sendkeys(""{SCROLLLOCK 2}"")")(close.window) && ping localhost -n 119 1>nul