Download lightroom 6 standalone

Goto to https://prodesigntools.com/adobe-lightroom-6-cc-direct-download-links.html and scroll down to the section "Adobe Lightroom 6/CC 2015 Direct Download Links".

There you'll find the appropriate links to download LR 6 including the latest update.

Adobe has removed ALL public download links for serial number programs
-links are ONLY available to someone who purchased a download from Adobe
.
For serial number programs you may download ONLY if you bought direct from Adobe via download
-Log-in to your account and click this link https://account.adobe.com/products
--click Order history on the left and then the link to your order that will show on the right
--and finally click the link "Downloads and serial numbers" that will appear
---as always, write the serial number in a text file AND copy that text file and the
---download file(s) to an external drive (or two) to be sure you have what you need
-if you did not buy direct from Adobe via download you must find your original install
-if you have an Education or volume license you MUST use your original media
--the link for an Education or volume license download is not available at all
-if you bought a disc and don't have a drive you will need to buy an external USB drive
-if you bought and lost a disc Adobe does not provide a replacement via download
-if you bought a download from a 3rd party vendor you will need to contact that vendor
.
When you do have a download, be sure to copy it to at least one external device
-a usb flash drive or hard drive, or write to a DVD
-plus a text file containing your serial number

Or try Direct Download Links https://prodesigntools.com/tag/ddl
According to HOW LONG IS MY DOWNLOAD AVAILABLE at the next link the time is 3 years
-https://helpx.adobe.com/x-productkb/policy-pricing/adobe-stores-online-order-payment-faq.html