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I would suggest you to follow the below mentioned methods and check after using each method if the issue gets resolved –
Steps to perform a SFC scan:
1. Click Start, click All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator. If you are prompted for an administrator password or for a confirmation, type the password, or click Allow
2. Type the following command, and then press ENTER:
A message will appear stating that 'The system scan will begin'. Be patient because the scan may take some time
3. If any files require a replace SFC will replace them. You may be asked to insert your Win7 DVD for this process to continue
4. If everything is okay you should, after the scan, see the following message "Windows resource protection did not find any integrity violations"
5. After the scan has completed, close the command prompt window, restart the computer and check.
The sfc /scannow command scans all protected system files and replaces incorrect versions with correct Microsoft versions.
Refer to the below mentioned link for free virus or malware scan of your computer -
Perform a clean boot follow the below mentioned steps:
Check if the issue is resolved. If the issue is resolved check which third party is causing the problem, referring the link given below:
After you have finished troubleshooting, follow these steps to reset the computer to start as usual:
If you are prompted for an administrator password or for confirmation, type your password, or click Continue.
If the above methods do not fix the issue do a startup repair:
1. Remove all floppy disks, CDs, and DVDs from your computer, and then restart your computer using the computer's power button.
2. Do one of the following:
o If your computer has a single operating system installed, press and hold the F8 key as your computer restarts. You need to press F8 before the Windows logo appears. If the Windows logo appears, you need to try again by waiting until the Windows logon prompt appears, and then shutting down and restarting your computer.
o If your computer has more than one operating system, use the arrow keys to highlight the operating system you want to repair, and then press and hold F8.
3. On the Advanced Boot Options screen, use the arrow keys to highlight Repair your computer, and then press Enter. (If Repair your computer isn't listed as an option, then your computer doesn't include preinstalled recovery options use the disc to do the repair as mentioned below, or your network administrator has turned them off.)
4. Select a keyboard layout, and then click Next.
5. On the System Recovery Options menu, click a tool to open it.
If your computer's system is severely damaged and you cannot access the System Recovery Options menu on your computer, you can access it using the Windows 7 installation disc or a system repair disc you created earlier.
To use this method, you need to restart (boot) your computer using the disc.
1. Insert the disc.
2. Restart your computer using the computer's power button.
3. If prompted, press any key to start Windows from the installation disc.
o If your computer isn't configured to start from a CD or DVD, check the information that came with your computer. You may need to change your computer's BIOS settings. For more information, see BIOS: frequently asked questions.
4. Choose your language settings, and then click Next.
5. If you are using the Windows installation disc, click Repair your computer.
6. Select the Windows installation you want to repair, and then click Next.
7. On the System Recovery Options menu, click a tool to open it.
Follow the below mentioned link for system recovery using the repair option:
Hope this helps. Let us know the results.
Meghmala – Microsoft Support
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