Troubleshoot and Fix Running Slow personal computer Issues on Your Computers

The SupportAssist application optimizes your computer (including updating outdated drivers) to help resolve performance issues.

1. Press and hold the Windows key (), and then press the q key.
2. In the search box, type SupportAssist.
3. Select SupportAssist (App) in the list of results.
   NOTE: When SupportAssist does not show up in the search results, go to the SupportAssist for PCs and tablets page for information about downloading and installing SupportAssist.
4. Touch or click Start Now to run the tests.
   NOTE: You can touch or click the down arrow and then run the individual test. Dell Technologies recommends running a full computer test.
5. SupportAssist runs the tests one by one and provides the results and suggested actions.

Restart your computer if you have not done so lately.

A reboot or restart can resolve many issues. Restarting your computer is an effective way to clear the computer memory (RAM) and shut down any errant processes and services.

Restarting your computer closes all the applications and services running on your computer, including background processes that other programs have started. The more programs that you have open and the longer they run, the more likely your computer slows down and eventually run out of RAM. Ideally, you should shut down your computer when it is not in use. If you use your computer frequently, Dell Technologies recommends restarting the computer at least once per week.

If restarting the computer does not resolve the issue, go to the next step.

Running a hardware diagnostic test can help you identify hardware-related problems and provide you with troubleshooting steps to help resolve the issue. To determine if your Dell computer is experiencing a hardware problem, it is recommended that you first run a hardware diagnostic test. Dell offers both integrated and online diagnostics.

Running a hardware diagnostic tests using Dell SupportAssist

If the computer can boot into Windows and has an active Internet connection, run a quick test on the Dell computer using Dell SupportAssist.

Running Dell SupportAssist Preboot System Assessment or enhanced Preboot System Assessment (Dell PSA or ePSA)

1. Restart the computer.
2. When the Dell logo appears, press the F12 key to enter the One-time Boot Menu.
3. Use the arrow keys to select Diagnostics and press the Enter key.
4. Follow the on-screen prompts and respond appropriately to complete the diagnostics.
   1. If the test passes, go to the next step.
   2. If the test fails, ensure to write down the error code and validation code, and contact Dell Technical Support.

Malware (viruses, spyware, trojans, and so on) can cause the computer to stop working or perform slowly. Malware can monitor users web browsing, display unsolicited advertisements and click baits. Malware can be used against users to gain access to personal data such as identification numbers or details, bank or credit card numbers, passwords, datafile, and so on.

If you suspect that your computer has been infected, Dell Technologies recommends that you run a thorough or deep scan on your computer using an anti-virus or anti-malware program. Windows 10 computers come equipped with Windows Defender, which provides basic protection against malware, but dedicated anti-virus or anti-malware software can thoroughly scan your computer and remove malicious programs. Most Dell computers are preinstalled with a basic anti-virus software such as McAfee that requires a subscription from the software manufacturer. There are many other anti-virus or anti-malware programs (free-to-use and subscription-based) that you may use.

Learn how to Protect Your Computer or Remove Malware in Microsoft Windows.

If you do not find any malware on the computer, go to the next step.

System Restore is a Microsoft Windows operating system feature that can help fix certain types of crashes and other computer problems. System Restore reverts your computer's state (including computer files, installed applications, Windows Registry, and computer settings) to a previous point in time. You can create "restore points" manually at any time, but Windows automatically creates them whenever:

• An application or software is installed.
• Windows Update installs updates.
• A device driver is installed.

Learn How to Use System Restore in Microsoft Windows.

If restoring the computer to a previous date does not resolve the issue, go to the next step.

If your Dell computer continues to lock up, stop responding, or run slowly, and the troubleshooting steps above did not resolve the issue, consider reinstalling the operating system. If you do not want to reinstall the operating system, see the Optional Steps section to see other potential solutions.

Learn how to Restore your Computer Using SupportAssist OS Recovery.