Windows Vista suffers from a bug that causes many machines to stall while deleting, copying and moving files, a flaw that has provoked consternation in online forums.

"I've seen this bug in action, and trust me, it's as if you're copying over a 64k link using only 256mb of RAM," one Reg reader complained. "To add to the problem, you can't cancel or anything."

According to a thread on Microsoft's TechNet site, Microsoft has issued a hotfix for the problem, but it has failed to quell the outrage. For one thing, individual users must get Microsoft's approval before the fix can be downloaded, according to our tipster. And for another, hotfixes are more of a pain to install than patches.

We've contacted a Microsoft spokeswoman, who promised to see if a patch for the problem in the works. Meanwhile, Vista users continue to grumble.

"I simply can not believe that I updated to a new computer and put windows Vista on it to find that it's not even capable of moving and deleting files in an efficient manner," one disaffected user posted in the Microsoft forum. "Microsoft must be kidding! The most basic of features that I use all the time is a slow train wreck." ®