Here are 10 methods you can use to attempt to resolve the problem of high disk usage on your Windows 10 system. Some may take longer. Hi All, I have a problem with running Windows 8.1 under bootcamp where bootcamp itself uses between 25-35% CPU constant. Also when pressing any function keys such as volume or display/keyboard brightness it can take minutes to respond. Then when it does the translucent overlay can stay on.

Disk Utility User Guide

Disk Utility can fix certain disk problems—for example, multiple apps quit unexpectedly, a file is corrupted, an external device doesn’t work properly, or your computer won’t start up. Disk Utility can’t detect or repair all problems that a disk may have.

If you run First Aid on a disk, Disk Utility checks the partition maps on the disk and performs some additional checks, and then checks each volume. If you run First Aid on a volume, Disk Utility verifies all the contents of that volume only.

1. In the Disk Utility app on your Mac, choose View > Show All Devices.

   Note: If you’re checking your startup disk or startup volume, restart your computer in macOS Recovery, select Disk Utility in the macOS Utilities window, then click Continue. If you check your startup volume (Macintosh HD), make sure you also check your data volume (Macintosh HD - Data).

2. In the sidebar, select a disk or volume, then click the First Aid button .

   If Disk Utility tells you the disk is about to fail, back up your data and replace the disk—you can’t repair it. Otherwise, continue to the next step.

3. Click Run, then click Continue.

   If Disk Utility reports that the disk appears to be OK or has been repaired, you’re done. You can click Show Details to see more information about the repairs. Otherwise, you may need to do one of the following.

   • If Disk Utility reports “overlapped extent allocation” errors, two or more files occupy the same space on your disk, and at least one of them is likely to be corrupted. You need to check each file in the list of affected files. Most of the files in the list have aliases in a DamagedFiles folder at the top level of your disk.

     • If you can replace a file or re-create it, delete it.

     • If it contains information you need, open it and examine its data to make sure it hasn’t been corrupted.

   • If Disk Utility can’t repair your disk, or you receive a report that the First Aid process failed, try to repair the disk or partition again. If that doesn’t work, back up as much of your data as possible, reformat the disk, reinstall macOS, then restore your backed-up data.

If your Mac has a Fusion Drive and you see a flashing question mark or alert, see the troubleshooting section of the Apple Support article About Fusion Drive, a storage option for some Mac computers.

If you continue to have problems with your disk or it can’t be repaired, it may be physically damaged and need to be replaced. For information about servicing your Mac, see Find out how to service or repair your Mac.

Sparrow 1.1 is now available via the Mac App Store, finally bringing promised compatibility with IMAP accounts from MobileMe, Yahoo, and AOL in addition to any general IMAP server. Developers Dominique Leca and Dihn Viêt Hoà have also added multitouch gesture support for trackpad users, easier formatting for rich text, priority inbox support for Gmail, and a new 'minimalist' view for faster inbox scanning.

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The original 1.0 version of Sparrow only supported accessing Gmail accounts. The developers decided to focus on Gmail support for the initial release because much of the UI was centered on Gmail-specific features, and its IMAP implementation has a number of quirks not generally present in standard IMAP servers. Once the initial version was released, however, the team went to work on integrating support for general IMAP.

'Many people were requesting support for IMAP outside of Gmail,' Leca told Ars. 'Especially MobileMe users, and people with custom IMAP.'

Leca told Ars, however, that arbitrary folder mapping isn't yet supported. 'It's already in the works and should be released soon in 1.1.1,' he said. Even still, Sparrow's 'minimal' UI doesn't have an easy way to view different folders outside of the standard inbox, drafts, and trash. '1.1 is transitional in that sense,' Leca said, 'and 1.2 is planned to have an extended sidebar option to view your favorite labels or folders.'

There's more to Sparrow 1.1 than just better IMAP support. The release also includes a few feature and UI enhancements. Sparrow now supports a number of multitouch gestures when using a trackpad for faster navigation of the message list and switching accounts. A new formatting bar aids in composing rich text e-mails. Sparrow also supports contact groups and Gmail's priority inbox, plus you can create a custom signature for every account.

Sparrow's message view now has an option for viewing Gmail's priority inbox, which can be set to only view unread mail in any account, making it easier to see what messages are new or haven't yet been dealt with in some way. A new 'minimal' mode leaves out the message preview, too, showing only the sender and the subject. This makes it easier to view more messages in the the message list at once and scan for important items.

The release includes a revamped database under the hood which Leca said makes Sparrow 'less CPU intensive and snappier,' though we found the difference hard to notice on a new MacBook Air. A number of bug fixes are also included.

Sparrow 1.1 is available now via the Mac App Store, and 1.0 users can download the update for free. Leca told Ars that the 1.1 update for non-MAS customers will be available later today. As an added bonus, we have 10 free promo codes for the first 10 readers that follow @ArsInfiniteLoop on Twitter and tell us you'd like to give Sparrow's IMAP support a try.