Criticism of Windows Vista including Photoshop and WinRAR, also performed worse under Vista. Many low-to-mid-end machines that come with Windows Vista pre-installed suffer from exceptionally slow performance with the default Vista settings that come pre-loaded, and laptop manufacturers have offered to "downgrade" laptops to Windows XP—for a price. However, this "price" is unnecessary, as Microsoft allows users of Windows Vista and Windows 7 to freely "downgrade" their software by installing XP and then phoning a Microsoft representative for a new product key. When first released in November 2006, Vista performed file operations such as copying and deletion more slowly than other operating systems. Large
Windows Vista "incredibly distorted". Windows Vista build 5824 (October 17, 2006) was supposed to be the RTM release, but a bug, which destroyed any system that was upgraded from Windows XP, prevented this, damaging development and lowering the chance that it would hit its January 2007 deadline. Development of Windows Vista came to an end when Microsoft announced that it had been finalized on November 8, 2006, and was concluded by co-president of Windows development, Jim Allchin. The RTM's build number had also jumped to 6000 to reflect Vista's internal version number, NT 6.0. Jumping RTM build numbers is common practice among