Hi all, longtime fan of ALL Piriform products, escpecially CCleaner.
Just ran into this Windows.old "nuking" issue yesterday on this brand new ASUS PC: https://www.bestbuy.com/site/asus-zen-aio-23-8-touch-screen-all-in-one-intel-core-i5-8gb-memory-1tb-hard-drive-quartz-gray/5732324.p?skuId=5732324
Got home, took computer out of box, booted it up, let it do its windows setup process, then windows updates, then a restart. Checked for updates again and got the creators update offer.
Note: I had NOT installed ccleaner at any point yet.
Did the creators update, all was well.
Went ahead and installed the latest version of CCleaner, checked Remove old Windows installations... ran ccleaner. all was well.... until i restarted it. and now it won't boot.
From what I've read here, sounds like ccleaner deleted some ASUS drivers the PC needed.
This seems to still be happening with CCleaner. I can't tell you which version of CCleaner is on there since the machine won't boot, but I downloaded it from your site yesterday (October 5, 2017).
Thank you for your help,