Ever since Windows 7 pc's have been loaded with crapware and "enhancing experience" so hard it slows new pc's to a crawl. Almost every OEM has customer feedback background service that does not turn off after answering the user does not want to participate.
For all customers I wipe pc's and install it with an MSDN downloaded installation before it is first booted. This has included lenovo machines in the last years. Glad to see I was right to do so.
I have access to MSDN If you do not and download elswhere, please compare hashes of downloaded and Original iso files, you do not want to replace your OEM crapware by other malware.
pro tip, your windows 8(.1) windows key is stored in the bios and not on a sticker. this can be recovered with "rw-everything", microsoft has official dummy keys you can use while installing (but will not work to activate)