What is UAC?
The goal of UAC is to protect your computer from unauthorized access to your files and settings. However, it does annoy some users.
Should I turn it off?
I would recommend leaving it on unless you are really bothered by it. The extra prompts may be irksome, but they are there to protect your computer. You can turn it on at any time by checking the box in step 6.
How can I disable it?
1. Open the Start Menu and click Control Panel
2. Click 'User Accounts and Family Safety'
3. Select 'User Accounts'
4. Click 'Turn User Account Control on or off'
5. Click Continue (for the last time)
6. Uncheck 'Use User Account Control (UAC) to help protect your computer.' and click OK.
You may also just open the Start Menu and type User Account Control then go to step 5.