Sims 1 Complete Collection multiple installing issues. [SOLVED]

So I've been trying to install this for the past 3 days to no avail! I have been trying everything and wondering if anyone can help me with this issue. I have extracted my files with WinRAR and when I go to run the 'Start.exe' nothing happens, the program runs as a background process but everytime I attempt to run the program it creates a new background issue. So I run through the setup version, to which the installer starts loading but then the following error message shows up, 'Unknown error encountered aborting setup'.

I've tried re-installing everything, the eraser, clean system boots. I have no clue what to do anymore, anyone willing to help it's greatly appreciated.

Thank you for the welcome!

Yes I've tried running as administrator and the unknown error still occurs. And I have extracted it with WinRAR from the .RAR into a empty folder off my documents.

In your extracted download you will find a folder called Setup.
There you will find various setup possibilities for the various languages.
So try these, f.e. Setup_Dutch or Setup_English
Still run these as Administrator

I tried a few of those setups, running as administrator but they ask for Windows Command Processor which I agree to and nothing happens, doesn't even run a background process unfortunately.

Yeah, I've re-extracted them all twice over, nothing seems to be working, just tried again and still the same error. I've installed this game before onto this pc quite a while ago (I have double checked recently that everything previously in place has been removed) But had no issue then but now when I really have an itch for it just doesn't want to work. 

Any suggestions for it are greatly appreciated, thank you

If you haven't removed old installations correctly, there might be remnants in the register preventing you from re-installing.
Almost every expansion has its own Eraser. The Complete Collection unfortunately contains however only 1 Eraser in the folder Eraser of the download.
You can download the 5 other erasers from https://mega.nz/#F!ME8EiDBb!uDj3AjFlAykGZcCXfH9dmw
Download them, double-click on each of them. It looks like nothing happens, but it will erase the register-entries for that particular expansionpack.

So I extracted and used all those erasers and now have an error message that I've never gotten before when I run the setup, 'Error getting sku number from registry'? I'm still running it as administrator

Open the Registry (Windowskey + R) and type regedit.
Open HOTKEY_LOCAL_MACHINE
Open SOFTWARE
If you have a 64 bits Windows, open Wow6432Node
Open Maxis
Then, if these folders exist, remove them:
The Complete Sims 1 Collection
The Sims
The Sims Complete

Close Maxis
Open folder Windows
Open CurrentVersion
Open Uninstall
Again if they exist, Remove following entries:

{2727FBEF-3155-11D4-8F73-0050DA0F6297} – The Sims Livin’ Large
{10798AE3-DCBB-43C3-9C93-C23512427E25 } – The Sims Deluxe
{7D268154-7A31-40F2-9779-7A250914BB39} – The Sims House Party
{017E65B1-7484-461A-B16F-7C931166083B} – The Sims Hot Date
{3D9231F6-A287-4222-9EBC-519BB206F590} – The Sims Vacation
{7C32C567-DC0F-4C80-B06C-7873850A2E06} – The Sims Unleashed
{1A7F8DF6-5A3E-4CDF-BC82-BE26B407E21B } – The Sims Superstar
{9A00D1BA-D03A-44E5-AF28-86A1F377DF61} – The Sims Makin’ Magic
{F2527115-B8BF-4FDB-B5DA-5AADFB7C13E1} - The Sims Complete Collection



Close the Registry


Try to install the game again.

Done all of the above and still getting the same error, went back to double check and none of those entries were anywhere to be found.

In that case, try to revert your system to an earlier situation, preferably prior to when you removed The Sims.
The SKU-number should be 2 but I have no idea how to implement that in your register.
The folder in your registry for the Sims should look like this https://mega.nz/#!pJVyXJzT!uxdph7rOmHcnBk1v_I5G8-WLeQvINi69w_xO2lWmSQY
By the way, did you re-start your computer ? (required after the use of the Erasers)

I deleted the original Sims over a year ago and no longer have a back up save to which I can revert to. I also have restarted my pc since and still have no change.

**I have since had a small break through, I removed a file in my install shield information which is now allowing me to run the game perfectly! Thanks for all the help guys you can now close this topic